Ery Arsana, Made, I Dewa Made Cipta Santosa, Ida Bagus Gde Widiantara, & I Wayan Temaja. "Possibility analyses of using hydrocarbon R-290 and mixing with R-32 refrigerant to retrofit R-32 domestic split air conditioning." Journal of Applied Mechanical Engineering and Green Technology [Online], 1.1 (2019): 14-19. Web. 17 Feb. 2020