Lukkhana Benjawan, Seung-Hwan Lee, Thammarat Koottatep. Nitrogen Removal in Duckweed-Based Ponds with Effluent Recirculation. Agr. Nat. Resour. [internet]. 2008 Dec. 30 [cited 2026 Oct. 9];42(4):767-75. available from: https://li01.tci-thaijo.org/index.php/anres/article/view/244514