Woraphimrat, Natchayaporn, Supaporn Lertsiri, Thavida Maneewarn, Pichai Tongdeelert, and Kantana Lodthonglang. “The Use of Agricultural Automation Services of Oil Palm Farmers in Na Cha Luai District Ubon Ratchathani Province”. SciTech Research Journal 9, no. 2 (August 30, 2026): 127–144. accessed September 11, 2026. https://ph02.tci-thaijo.org/index.php/jstrmu/article/view/265875.