Udin, A. R. A. ., B. M. Susanto, and M. . Nuruddin. “Improving Service Quality of Refrigeration System With Using 3R Toreduce Air Pollution at ‘Udy Teknik’ Workshop in Balung Kulon Village – Jember Regency”. Food and Agricultural Sciences : Polije Proceedings Series, vol. 3, no. 1, Dec. 2020, pp. 212-7, https://proceedings.polije.ac.id/index.php/food-science/article/view/167.