National Centre for Natural Science and Technology. Vietnamese Mathematical Society. Vietnam Journal of Mathematics =: Tạp chí toán học. H.: National Centre for Natural Science and Technology - Vietnamese Mathematical Society.

National Centre for Natural Science and Technology. Vietnamese Mathematical Society. Vietnam Journal of Mathematics =: Tạp Chí Toán Học. H.: National Centre for Natural Science and Technology - Vietnamese Mathematical Society.

National Centre for Natural Science and Technology. Vietnamese Mathematical Society. Vietnam Journal of Mathematics =: Tạp Chí Toán Học. H.: National Centre for Natural Science and Technology - Vietnamese Mathematical Society.