Chongchaisit, N., and W. Deesutti. “The Development of Website to Promote the OTOP Products of Amphoe Pha Khao, Loei Province”. Research and Development Journal, Loei Rajabhat University, vol. 16, no. 57, July 2021, pp. 100-9, https://so05.tci-thaijo.org/index.php/researchjournal-lru/article/view/248285.