Sudirman S, Sirait YN, Ghaisani AD, Herpandi, Widiastuti I, Janna M. Antioxidant Activity of Polysaccharides from Water Lettuce (Pistia stratiotes) Leaf Extract: http://www.doi.org/10.26538/tjnpr/v7i11.7. TJNPR. 2023;7(11):5055-5058. Accessed April 5, 2025. https://tjnpr.org/index.php/home/article/view/3003