Chaitiang, Narong, and Kanyalak Seesongsom. “Factors Related to Self-Treatment With Herbal Medicine of Maechan Hospital, Chiang Rai”. Public Health Policy and Laws Journal 6, no. Supplement (September 1, 2020): S155-S170. Accessed April 28, 2024. https://so05.tci-thaijo.org/index.php/journal_law/article/view/242877.