“PENGKAJIAN UJI ADAPTASI VARIETAS PADI UNGGUL BARU DI KABUPATEN TAPANULI SELATAN SUMATERA UTARA”. Jurnal Online Pertanian Tropik 2, no. 3 (November 28, 2019): 239–245. Accessed February 5, 2026. https://idjpcr.usu.ac.id/jpt/article/view/2925.