Prilaku Petani Dalam Pemupukan Kentang (Solanum tuberosum. L) Di Kabupaten Karo Sumatera Utara. Petrop [Internet]. 2019 Dec. 3 [cited 2026 Feb. 5];6(1):58-61. Available from: https://idjpcr.usu.ac.id/jpt/article/view/3040