Kesesuaian wilayah lubang bekas tambang (void) untuk area pengembangan panel surya terapung dan bendungan di Kota Samarinda, Provinsi Kalimantan Timur = Land suitability of the former mining hole (void) for the development area of floating solar panels and dams in Samarinda City, East Kalimantan Province

Pengelolaan air asam tambang kegiatan pertambangan batubara terbuka dan kemungkinan dampak pada kesehatan kulit masyarakat pemanfaat sungai (suatu kajian di PT. X, Kabupaten Murung Raya, Provinsi Kalimantan Tengah) = Acid mine drainage management of open pit coal mining activities and possibility impact on skin health of river water-users community (a study in PT. X, Murung Raya District ,Central Kalimantan Province) / Rio Febrianto

Prediksi perubahan tutupan lahan dan daya dukung lahan permukiman di Kota Samarinda, Provinsi Kalimantan Timur = Land cover change prediction and residential area carrying capacity in Samarinda City, East Kalimantan Province

Prediksi perubahan penggunaan lahan pertanian di Kecamatan Palaran, Kota Samarinda, Provinsi Kalimantan Timur Tahun 2034 = Prediction of agricultural land-use change in Palaran Subdistrict, Samarinda City, East Kalimantan Province in 2034

Model Keberlanjutan Lingkungan Pertambangan Batubara (Kajian Nilai Jasa Lingkungan, dan Air Void Tambang sebagai Air Baku di PT Bukit Asam Tbk Tanjung Enim Sumatera Selatan) = Environmental Sustainability Model for Coal Mining (Value Assessment Environmental Services, and Mining Void Water for Raw Water of Coal Mining PT. Bukit Asam, Tbk, at Tanjung Enim, Sumatera Selatan)