Trisnaningsih, Trisnaningsih, and Arifin Kartohardjono. “Formulasi Nuclear Polyhedrosis Virus (NPV) Untuk Mengendalikan Ulat Grayak Padi (Mythimna Separata Walker) Pada Tanaman Padi”. Jurnal Entomologi Indonesia 6, no. 2 (December 15, 2016): 86. Accessed May 3, 2024. http://jurnal.pei-pusat.org/index.php/jei/article/view/106.