Sudirman, Sabri, Yohana N. Sirait, Aatikah D. Ghaisani, Herpandi, Indah Widiastuti, and Miftahul Janna. 2023. “Antioxidant Activity of Polysaccharides from Water Lettuce (Pistia Stratiotes) Leaf Extract: Http: www.doi.org 10.26538 Tjnpr V7i11.7”. Tropical Journal of Natural Product Research (TJNPR) 7 (11): 5055-58. https://tjnpr.org/index.php/home/article/view/3003.