รยะสวัสดิ์ ชคัตตรัย. 2018. “TECHNICAL EFFICIENCY ANALYSIS OF RICE PRODUCTION IN NAKHON RATCHASIMA”. Research Community and Social Development Journal 12 (2). Nakhon Ratchasima, Thailand:63-70. https://so04.tci-thaijo.org/index.php/NRRU/article/view/164576.