Akaleephan, Chutima, Chalermsak Kittitrakul, Nusaraporn Kessomboon, Kannikar Kijtiwatchakul, Achara Eksaengsri, and Jiraporn Limpananont. 2020. “International Trade Agreements and Impact on the Medicine System: Causal Relations?”. Journal of Health Science of Thailand 29 (January):S153-S166. https://thaidj.org/index.php/JHS/article/view/8420.