Jufri, M., ., M. ., Humairah, E. and Purwaningsih, E.H. 2017. STABILITY OF ANTI-ACNE NIOSOME GELS CONTAINING BETEL LEAF (PIPER BETLE L.) ESSENTIAL OIL. International Journal of Applied Pharmaceutics. 9, (Oct. 2017), 130–134. DOI:https://doi.org/10.22159/ijap.2017.v9s1.72_79.