wahyu Astuti, N. Aidawati, and E. Liestiany, “The Effect of Botanical Pesticides of Ketepeng Leaves (Cassia alata linn.) on the Mortality of Brown Stem Planthopper Pests (Nilapavarta lugens stal.) on Paddy”, JPTT, vol. 8, no. 2, pp. 1187-1190, May 2025.