Pujiastuti, Y. ., Indriani, E. ., Muslim, A., Irsan, C. ., & Arsi, A. . (2021). Effectivity of Bacillus thuringiensis from Soil in Freshwater Swamps against Epilachna sp. Larvae . Jurnal Lahan Suboptimal : Journal of Suboptimal Lands, 10(1), 46–53. https://doi.org/10.36706/JLSO.10.1.2021.531