D. F. Lestari, F. Fatimatuzzahra, and D. Dominica, “Uji Daya Hambat Bakteri Staphylococcus Aureus Sabun Cuci Tangan Cair Berbahan Arang Aktif Batok Kelapa: Inhibition Test of Coconut Shell Activated Charcoal Liquid Hand Wash against Staphylococcus aureus”, J. Sains Kes., vol. 3, no. 2, pp. 242–247, Apr. 2021.