Aritonang, Selin Cenora, et al. “Optimasi Konsentrasi VCO Terhadap Stabilitas Fisik Facewash Dan Uji Antibakteri Ekstrak Daun Kelapa Sawit (Eleais Guineensis Jacq.) Pada Bakteri Penyebab Jerawat: Optimization of VCO Concentration on Physical Stability of Facewash and Antibacterial Test of Oil Palm Leaf Extract (Eleais Guineensis Jacq.) on Acne-Causing Bacteria”. Proceeding of Mulawarman Pharmaceuticals Conferences, vol. 14, no. 1, Dec. 2021, pp. 288-94, doi:10.25026/mpc.v14i1.586.