Saputri, R., T. M. R. Melati, and F. Fitriyanti. “Antioxidant Activity of Ethanolic Extract from Tandui Leaves (Mangifera Rufocostata Kosterm.) by DPPH Radical Scavenging Method”. Borneo Journal of Pharmacy, vol. 2, no. 2, Nov. 2019, pp. 114-8, doi:10.33084/bjop.v2i2.1070.