ธีรศาศวัต ส. (2019) “The Occupation of Raising Toxin-Free Vagetables and Isan Fresh-Food Market”, RMUTI Journal Humanities and Social Sciences, 6(2), pp. 118–125. Available at: https://so05.tci-thaijo.org/index.php/RMUTI_SS/article/view/201856 (Accessed: 29 March 2024).