Novita A, Merlyn Mariana, Windy Manullang, M. D. P. Sarumaha, Advent. The Effectiveness of Beneficial Plants in Oil Palm (Elaeis guineensis Jacq.) Area in Reducing the Attack Rate of Oil Palm Leaf-Eating Caterpillar (oplec) at PT. Socfindo Mata Pao Gardens. Petrop [Internet]. 2024 Feb. 8 [cited 2025 Dec. 18];10(2):51-7. Available from: https://idjpcr.usu.ac.id/jpt/article/view/12068