Nakfon, P., K. Wichaipa, A. Raksuwan, and C. Maneethep. “A Survey on Public Opinions Regarding Drug Issues in the Bangkok Metropolitan Area, 2023”. Local Administration Journal, vol. 18, no. 4, Dec. 2025, pp. 533-48, https://so04.tci-thaijo.org/index.php/colakkujournals/article/view/277104.