Which textbook are you using? 
Bạn dùng sách giáo khoa nào? * 025 like: sách giáo khoa → →
a geography lesson/department/teacher/textbook ☊ geography ☊
illustrate sth: an illustrated textbook ☊ illustrate ☊
resource books for teachers ☊ resource ☊
a revised edition of a textbook ☊ revise ☊