Kumalasari, L. et al. 2018. Activity of Part of Spiked Pepper (Piper aduncum Linnaeus) Originating from Different Locations in Suppressing the Growth of Colletotrichum gloeosporioides Invitro: english. Jurnal Proteksi Tanaman (Journal of Plant Protection). 2, 1 (Jun. 2018), 18–27. DOI:https://doi.org/10.25077/jpt.2.1.18-27.2018.