“ANALISIS KADAR EMISI TRANSPORTASI DI SAMARINDA BERDASARKAN TIPE MESIN DAN KAPASITAS MESIN”. GEOSAINS KUTAI BASIN 3, no. 2 (August 28, 2020). Accessed September 2, 2025. https://jurnal.fmipa.unmul.ac.id/index.php/geofis/article/view/696.