LUBIS, Putri Kemala Dwi; PURBA, Ondo Apostel; PURBA, Aurick Mathias Danarya; GULTOM, Obed Sion; VERIYANTO, Jhon. Eco-Efficiency Sawit Sumut: Memangkas Biaya Produksi PKS Melalui Manajemen Limbah Berkelanjutan. RIGGS: Journal of Artificial Intelligence and Digital Business, [S. l.], v. 5, n. 2, p. 5396–5403, 2026. DOI: 10.31004/riggs.v5i2.9389. Disponível em: https://journal.ilmudata.co.id/index.php/RIGGS/article/view/9389. Acesso em: 10 oct. 2026.