“Bioefficacy of Eugenol-Based Bioinsecticide from Clove Leaf Oil (Syzygium Aromaticum) Against Brown Planthopper (Nilaparvata Lugens)”. Biosaintifika: Journal of Biology & Biology Education, vol. 18, no. 2, Aug. 2026, pp. 220-32, https://doi.org/10.15294/biosaintifika.v18i2.54211.