Ma’rufah, H., Nugroho, L.H. and Sukirno, S. 2024. Effectiveness extract of Crataeva nurvala leaves as insecticide against Spodoptera litura. Communications in Science and Technology. 9, 2 (Dec. 2024), 310-321. DOI:https://doi.org/10.21924/cst.9.2.2024.1536.