ZULKADIFTA, T. A. . Respons Pertumbuhan Dan Produksi Beberapa Varietas Ubi Jalar (Ipomoea batatas L.) Terhadap Pemberian Kompos Tandan Kosong Kelapa Sawit (TKKS). Jurnal Online Pertanian Tropik, [S. l.], v. 5, n. 1, p. 120– 127`, 2019. DOI: 10.32734/jopt.v5i1.3146. Disponível em: https://idjpcr.usu.ac.id/jpt/article/view/3146. Acesso em: 4 aug. 2025.