Hinkaew, T. “The Factors Affecting the Competitive Advantage of Thai Cassava Yard Entrepreneurs in Udon Thani Province”. Rajamangala University of Technology Tawan-ok Social Science Journal, vol. 2565, no. 2, Dec. 2022, pp. 53-71, https://so05.tci-thaijo.org/index.php/SocialJournal2rmutto/article/view/258016.