Thongmai, S. ., T. . Neamhom, W. . Patthanaissaranukool, and S. . Polprasert. “Energy Use and Consumption Patterns of Maize Cultivation - A Case Study in Thailand: 10.32526/Ennrj/19/202100086”. Environment and Natural Resources Journal, vol. 19, no. 6, Sept. 2021, pp. 435-48, https://ph02.tci-thaijo.org/index.php/ennrj/article/view/244769.