Hinkaew, Theerawat. 2022. “The Factors Affecting the Competitive Advantage of Thai Cassava Yard Entrepreneurs in Udon Thani Province”. Rajamangala University of Technology Tawan-ok Social Science Journal 2565 (2):53-71. https://so05.tci-thaijo.org/index.php/SocialJournal2rmutto/article/view/258016.