journal, king prajadhipok’s institute. “King Prajadhipok’s Institute Journal [January 2018 - April 2018]”. King Prajadhipok’s Institute Journal 16, no. 1 (August 21, 2020): 5–128. Accessed May 1, 2024. https://so06.tci-thaijo.org/index.php/kpi_journal/article/view/243983.