Phorncharoen, Irada, Marisa Klahan, Sabaiporn Suwannakood, and Foyfon Kamhang. “Marketing Mix and Being an Entrepreneur That Affects the Understanding of Organic Production in Ubon Ratchathani Province”. Journal of Humanities and Social Sciences Thonburi University 14, no. 2 (May 11, 2020): 109–119. Accessed May 8, 2024. https://so03.tci-thaijo.org/index.php/trujournal/article/view/205465.