Study on the Biogas Production Process from a Mixture of Cattle and Poultry Manure with the Addition of Cocoa Pod Husk Waste abdulrahman, Dhian Herdhiansyah, Hermanto, . Asriani Tekper : Jurnal Teknologi dan Manajemen Industri Pertanian Vol. 6 No. 1 2025 DOI 10.33772/tekper.v6i1.59