Seetanun W, Swatdee P. The Rice-Azolla-Fish systems : An Ecological View. Thai Agric.Res.J. [internet]. 1992 Jan. 1 [cited 2026 Oct. 1];10(1):58. available from: https://li01.tci-thaijo.org/index.php/thaiagriculturalresearch/article/view/241629