Mokalu, N., & Kaligis, J. B. (2021). DISEASE CONTROL PURPLE BLOTCH (Alternaria porri L.) USING a PESTICIDEPLANT EXTRACT of BETEL LEAF ON the ONION PLANT (Allium ceppa L.). Jurnal Agroekoteknologi Terapan, 2(1), 7–10. https://doi.org/10.35791/jat.v2i1.34063