“EFFECT OF BAGWORM Pteroma Pendula Joannis ATTACK ON THE DECREASE IN OIL PALM PRODUCTIVITY”. Jurnal Hama dan Penyakit Tumbuhan Tropika 19, no. 2 (September 18, 2019): 101–108. Accessed August 5, 2026. https://jhpttropika.fp.unila.ac.id/index.php/jhpttropika/article/view/507.