I Wayan Angga Widianta Putra; Sukadana, I. G. K.; I Gusti Ngurah Putu Tenaya; I Putu Widiarta. The Effect of Types of Biogas and Methanol Purification and Loading As Fuel for Four-Stroke Generators on Exhaust Emissions. Nat Sci Eng Tech Jour 2023, 3, 200-205.