Putri, Kartika, Ratna Santi, and Sitti Nurul Aini. “Diversity of Collembola and Ground Surface Insects at Different Ages of Oil Palm Plantations (Elaeis Guineensis Jacq.): Keanekaragaman Collembola Dan Serangga Permukaan Tanah Di Berbagai Umur Perkebunan Kelapa Sawit (Elaeis Guineensis Jacq.)”. Jurnal Ilmu Tanah dan Lingkungan 21, no. 1 (April 1, 2019): 37-41. Accessed May 25, 2022. https://ilkom.journal.ipb.ac.id/index.php/jtanah/article/view/29327.