Digital library
Textbooks, references and open learning resources.

External
Messages that Matter: Public Speaking in the Information Age 3e
Josh Misner and Geoff Carr · North Idaho College
In the contents: 8.03: Getting Started · 8.04: Starting Tips for Practice

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A Second Course in Ordinary Differential Equations: Dynamical Systems and Boundary Value Problems
Russell Herman · University of North Carolina Wilmington
In the contents: 4.02: Partial Differential Equations

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Math 27: Number Systems for Educators
Ashley McHale · Las Positas College
In the contents: 7.13: Geometry in Art and Science · 9.03: Appendix C- Solutions for Partner Activities

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Analysis of Variance and Design of Experiments
The Pennsylvania State University · LibreTexts
In the contents: 03: ANOVA Models Part I · 04: ANOVA Models Part II · 07: Randomization Design Part I

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Mental Health and Wellness
Cathy Thwing and student writers at Pima Community College · LibreTexts
In the contents: Dear Ash - by Ashley Partida

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NUTRI 300: Nutrition
Rose Giordano · Folsom Lake College
In the contents: 5.5: Understanding Blood Cholesterol and Heart Attack Risk · 11.9: Start Your Sustainable Future Today

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BUS 215: Introduction to Business
Brown · Cosumnes River College
In the contents: 1.07: Starting-up - How Early Decisions Shape the Entrepreneurial Journey (Moran Lazar) (EDIT) · 5.04: Designing a Startup Operational Plan · 7.05: Developing Startup Financial Statements and Projections

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Math In Plain Sight
Timothy Cooley · Orange Coast College
In the contents: 6.11: Quartiles

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College Algebra and Trigonometry- Expressions, Equations, and Graphs
Holly Carley and Ariane Masuda · New York City College of Technology
In the contents: 3.2.01: Geometric Description and Solutions of Two Particular Equations- The Circle and the Parabola · 3.2.02: Graphs of Certain Quadratic Equations- Part I · 3.2.03: Graphs of Certain Quadratic Equations- Part II

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Small Business Management in the 21st Century
LibreTexts · LibreTexts
In the contents: 11.04: The Benefits and the Risks of Participating in a Supply Chain

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CHEM 113: Human Chemistry I
Pedro Muíño · Saint Francis University
In the contents: 8.11: Partial Pressures and Dalton's Law · 11.08: Artificial Transmutation

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Support Course for Elementary Statistics
Larry Green · Lake Tahoe Community College
In the contents: 11.2.04: Using Fractions Decimals and Percents to Describe Charts

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Writing for Strategic Communication Industries
Jasmine Roberts · The Ohio State University
In the contents: 4.02: News value types (Part 1) · 4.03: News value types (Part 2) · 5.05: Body of the article

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Introduction to Botany
Alexey Shipunov · Minot State University
In the contents: 2.04: Other Parts of the Cell · 09: Plants and Earth

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The OER Guide to Media Writing
Mark Poepsel · Southern Illinois University
In the contents: 1.01: Art of Clarity - Sentence Structure and Parts of Speech · 2.05: Art of Clarity - Paragraphs · 3.04: Art of Clarity - Quote Selection and Formatting

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Telecommunications
Chris C.J. Lee · Fontys University of Applied Sciences
In the contents: 3.10: Impedance Matching Using Smith Charts · 3.12: Matching Using the Smith Chart

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Basic Reading and Writing
Lumen Learning · Lumen Learning
In the contents: 7.34: Outcome- Other Parts of Speech · 7.37: Text- Articles · 7.38: Self Check- Other Parts of Speech

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Choosing and Using Sources - A Guide to Academic Resear
Cheryl Lowry · The Ohio State University
In the contents: 2.08: Scholarly Articles as Sources

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https://math.libretexts.org/Workbench/Calculus_2_OER
Leonard Lamp · Irvine Valley College
In the contents: 2.01: Integration by Parts · 2.04: Partial Fractions

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PHY SCI 101: General Course Physical Science
Likwan Cheng · City Colleges of Chicago
In the contents: 2.1.02: Layers of the Earth · 3.1.04: Partial Melting and Crystallization · 5.02: Investigation - Comparing Marble and Quartzite