Febrianti, L., D. Nawangsari, and A. . Silvia F. “FORMULATING FORMATION OF COCONUT SHELL (Cocos Nucifera L) ACTIVE CHARCOAL FOR TEETH WHITENING ”. Jurnal Farmasi & Sains Indonesia, vol. 4, no. 2, Oct. 2021, pp. 50-57, doi:10.52216/jfsi.vol4no2p50-57.