Giáo trình, tài liệu tham khảo và tài nguyên học tập mở.
Nguồn ngoài
Yoshie Hagiwara · California State University Los Angeles
This text is designed to give you a comprehensive introduction to Geology at no or very nominal cost. It contains both written and graphic text material, intra-text links to other internal material which may aid in understanding topics and concepts, intra-text links to the appendices and glossary for tables and definitions of words, and extra-text links to videos and web material that clarifies and augments topics and concepts.
