GIANG, Nguyễn Thị Hà. THE OPPORTUNITY FACTOR IN THE GENERAL OFFENSIVE AND UPRISING IN THE SPRING IN 1975. Dalat University Journal of Science, Dalat, Vietnam, v. 5, n. 3&4, p. 26–32, 2015. DOI: 10.37569/DalatUniversity.5.3&4.275(2015). Disponível em: https://tckh.dlu.edu.vn/index.php/tckhdhdl/article/view/275.. Acesso em: 10 feb. 2025.