PURWAYANTIE, S.; FADLY, D. .; SHOLAHUDDIN; SAPUTRI, N. E. .; WIJANARTI, S. . Antioxidant Activity From Multiple Extraction Of Kratom Leaf (Mitragyna speciosa) Without Veins With Sonicator-Type Bath. Journal of Health and Nutrition Research, [S. l.], v. 1, n. 3, p. 178–184, 2022. DOI: 10.56303/jhnresearch.v1i3.82. Disponível em: https://journalmpci.com/index.php/jhnr/article/view/82. Acesso em: 10 mar. 2025.