http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
So sánh chương trình cải cách với chương trình Ban A môn hóa học lớp 10
Luận văn tốt nghiệp Đại học sư phạm ngành Hóa Khóa 19
Trường Đại Học Cần Thơ, khoa Sư phạm
chemistry - study and teaching ( secondary )