http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Bộ đề thi trắc nghiệm luyện thi Trung học phổ thông quốc gia năm 2019 môn Khoa học tự nhiên
Lê Trọng Huyện, Lê Đình Trung, Vũ Đình Túy,...[và những người khác]