Course book
Source and course book are semantically related. in book used in education topic. In some cases you can use "Source" instead a noun phrase "Course book".
Source
Source noun - A point or place at which something is invented or provided.
Mutual synonyms
Cite this Source
Source and Course book. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/course_book/source
Course book & Source. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/course_book/source>.
Source or Course book. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/course_book/source.
Google Ngram Viewer shows how "course book" and "source" have occurred on timeline