http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Sách gồm 7 chương, mỗi chương gồm có các phần phần giới thiệu những kiến thức cơ bản cần nhớ, bài tập ôn và bài tập nâng cao về đại số và hình học lớp 7.
Study and teaching (Secondary),Dạy và học (Trung học)