Borisutdhi, Y., and Kaewkhata, C. “Factors contributing farmers’ persistence in farming career: Grounded theory study”. International Journal of Agricultural Technology 11, no. 7 (November 20, 2015): 1443–1460. accessed August 22, 2025. https://li04.tci-thaijo.org/index.php/IJAT/article/view/6519.