Tobing, Oktavianus Lumban, Yanyan Mulyaningsih, and Amida Dwi Safitri. “The Effect of Concentration and Frequency of Neem Leaf Extract on Aphid Attacks on Chili Plants”. Indonesian Journal of Applied Research (IJAR) 4, no. 2 (August 10, 2023): 146-158. Accessed July 3, 2024. https://iojs.unida.ac.id/index.php/IJAR/article/view/329.