Nugroho, L, H., Hartini, Y, S.(2020).Farmakognosi Tumbuhan Obat: Kajian Spesifik Genus Piper (Cet.1).Yogyakarta:Gadjah Mada University Press.
Gaya MLA
Nugroho, L., Hartanto., Hartini, Yustina, Sri."Farmakognosi Tumbuhan Obat: Kajian Spesifik Genus Piper".Cet.1Yogyakarta:Gadjah Mada University Press,2020.Electronic Resource.