Purwayantie S, Fadly D, Sholahuddin, Saputri NE, Wijanarti S. Antioxidant Activity From Multiple Extraction Of Kratom Leaf (Mitragyna speciosa) Without Veins With Sonicator-Type Bath. J. Health Nutr. Res [Internet]. 2022 Nov. 30 [cited 2025 Mar. 10];1(3):178-84. Available from: https://journalmpci.com/index.php/jhnr/article/view/82