Agoesdy, Riza, Hamidah Hanum, Abdul Rauf, and Fitra Syawal Harahap. “STATUS HARA FOSFOR DAN KALIUM DI LAHAN SAWAH DI KECAMATAN TANJUNG MORAWA KABUPATEN DELI SERDANG”. Jurnal Tanah dan Sumberdaya Lahan 6, no. 2 (July 1, 2019): 1387–1390. Accessed April 24, 2024. https://jtsl.ub.ac.id/index.php/jtsl/article/view/261.