Pham, K. A., Hoang, X. P., & Le, T. H. (2019). Vietnam journal of mathematics: Vietnam academy of science and technology & Vietnamese mathematics society. H: Vietnam academy of science and technology & Vietnamese mathematics society.
Παραπομπή Chicago StylePham, Ky Anh, Xuan Phu Hoang, και Tuan Hoa Le. Vietnam Journal of Mathematics: Vietnam Academy of Science and Technology & Vietnamese Mathematics Society. H: Vietnam academy of science and technology & Vietnamese mathematics society, 2019.
Παραπομπή MLAPham, Ky Anh, Xuan Phu Hoang, και Tuan Hoa Le. Vietnam Journal of Mathematics: Vietnam Academy of Science and Technology & Vietnamese Mathematics Society. H: Vietnam academy of science and technology & Vietnamese mathematics society, 2019.
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