Aphipan Pookpakdi, and Harisadee Patharadilok. “The study on climatic Adaptation of Soybeans at Kamphaeng Saen, a Representative of Central Plain of Thailand”. Agriculture and Natural Resources 24, no. 2 (June 30, 1990): 224–229. accessed September 18, 2026. https://li01.tci-thaijo.org/index.php/anres/article/view/242127.