“The Potency of Purple Sweet Potato (Ipomoea Batatas) Leaf Extract As Biofungicide for Controlling Fusarium Rot on Chili: The Potency of Purple Sweet Potato (Ipomoea Batatas) Leaf Extract As Biofungicide ”. 2020. Journal of Agriculture and Applied Biology 1 (1): 1-8. https://doi.org/10.11594/jaab.01.01.01.