NGUYỄN THẾ BẢO; NGUYỄN DUY TUỆ; ĐÀO HUY TUẤN. The feasibility study of retrofiting R404A refrigerant to R407F to improve energy saving and protect environment. Journal of Technical Education Science, [S. l.], v. 12, n. 4, p. 1–6, 2017. Disponível em: https://www.jte.edu.vn/index.php/jte/article/view/500. Acesso em: 7 apr. 2026.