Djatmiko, R. et al. 2023. Penggunaan Pestisida Nabati Ekstrak Campuran Daun Sirsak (Annona muricata Linn) dengan Daun Tembakau (Nicotiana tabacum L.) terhadap Pencegahan dan Pemberantasan Hama Belalang pada Semai Jati (Tectona grandis L. f.): Use of Organic Pesticides Mixed Extract of Soursop (Annona muricata Linn) Leaves with Tobacco (Nicotiana tabacum L.) Leaves Against the Prevention and Eradication of Locust Pests on Teak (Tectona grandis L.f.) Seedlings. Buletin Loupe. 19, 01 (Jun. 2023), 92–97. DOI:https://doi.org/10.51967/buletinloupe.v19i01.2443.