SULTAN SYAID ARIFADHILATURRAHMAN; MARLAN USMANI PUTRA; TATI HARYATI. Penerapan Teknologi Rorak untuk Konservasi Tanah pada Perkebunan Kakao di Desa Pejalin Kecamatan Tanjung Palas, Kabupaten Bulungan: Application of Rorak Technology for Soil Conservation in Cocoa Agroecosystems of Pejalin Village, Tanjung Palas District. Jurnal Anggrek Hitam, [S. l.], v. 2, n. 2, p. 6–9, 2025. Disponível em: https://journal.uwgm.ac.id/abdimasanggrekhitam/article/view/3637. Acesso em: 17 jan. 2026.