Choonluchanon, Somporn. “Effect of Blue Green Algae on Yield of RD 23 rice”. Thai Agricultural Research Journal 9, no. 1 (January 1, 1991): 11–16. accessed October 1, 2026. https://li01.tci-thaijo.org/index.php/thaiagriculturalresearch/article/view/242201.