Boonyawongwiwat, T. “Mythologies of the Hall of Opium: The Identification of Opium in the Context of Nation-Building and Tourism”. Journal of Mekong Societies, vol. 12, no. 1, Apr. 2016, pp. 163-82, https://so03.tci-thaijo.org/index.php/mekongjournal/article/view/55579.