CAO, Ngoc Bau, and Mong Nghi TRAN. “Vietnam Students’ National Defence and Security Education: Challenges and Solutions”. Journal of Ecohumanism 3, no. 4 (August 15, 2024): 1691–1700. Accessed March 9, 2026. https://www.ecohumanism.co.uk/joe/ecohumanism/article/view/3698.