Antibacterial activity of ethanolic extract and fraction of leaves of singawalang (Petiveria alliaceae) against resistant bacteria - Mulyani, Yani; School of Pharmacy, Institute of Technology Bandung. Jl. Ganesa No. 10 Bandung (Faculty of Pharmacy Universitas Gadjah Mada, Yogyakarta, Skip Utara, 55281, Indonesia, 2011)