Like the other book 人体结构素描 (Human Anatomy Sketches), this is also from Russia Repin Institute of Arts.
If I translated the title correctly, 素描高级课程教学范本 means Advanced Drawing Course Templates.
This is 116 pages, paperback and almost A3 in size. It's a Chinese edition but there's not much text.
The sketches are huge and of selected parts of the body. There aren't a lot on bones. Most are on muscles, hands and feet. Also included are several pages of life drawing examples. The art shows amazing finesse.
You can contact Basheer Graphic Books to order the book.
Let me know what you think of this book in the comments section.