Sumalee Grodgangunt. “Enhancing Competitiveness of OTOP Entrepreneurs in Narathiwat Province”. Turkish Journal of Computer and Mathematics Education (TURCOMAT) 12, no. 12 (May 25, 2021): 3994–4002. Accessed September 12, 2025. https://textitlejournal.com/turcomat.org/index.php/turkbilmat/article/view/8200.