HAO LYU. Opium Prohibiting Campaign in the Joseon Dynasty Under Tribute System. Journal of Research in Social Science and Humanities, [S. l.], v. 2, n. 9, p. 16–19, 2023. Disponível em: https://www.pioneerpublisher.com/jrssh/article/view/432. Acesso em: 3 may. 2025.