Aulia, Irham, Haftirman Haftirman, and Ega Taqwali Berman. 2025. “Viability of R-290 Refrigerant As Residential AC Retrofit: Effect of Charge Mass Variations”. International Journal of Innovation in Mechanical Engineering and Advanced Materials 7 (2). Jakarta, Indonesia:53-63. https://doi.org/10.22441/ijimeam.v7i2.30904.