Nguyen, Nguyet, and Quyet Luu. 2025. “The Strategies for Protecting National Maritime and Island Borders under Emperors Gia Long and Minh Mang (1802–1840): A Case Study of the Seas and Islands of Southern Vietnam”. VNUHCM Journal of Social Sciences and Humanities 9 (2), 3030-41. https://doi.org/https://doi.org/10.32508/stdjssh.v9i2.1109.