Soemarsono, Annisa Rahmita, Lusi Ernawati, Azmia Rizka Nafisah, and Fadhil Muhammad Tarmidzi. 2021. “Pelatihan Pembuatan Biobriket Ramah Lingkungan Berbahan Dasar Campuran Limbah Bonggol Jagung/Ampas Kopi/Serbuk Gergaji Kayu Kelompok Masyarakat Petani (GAPOKTAN) KM 12 Balikpapan Utara : Training on Making Biobriquettes Using Corncob/Coffee Ground/Wood Sawdust-Based Agriculture Waste for the Farmers Community Group (GAPOKTAN) KM 12 North Balikpapan”. Berdikari: Jurnal Pengabdian Masyarakat Indonesia 4 (1), 1-9. https://doi.org/10.11594/bjpmi.04.01.01.