Nirmala, K., and B.Sree lakshmi R.Narasamma T.Kishore kumar , trans. 2015. “Optimization of Air Conditioner Condenser Using R404 to Improve Heat Transfer Rate”. International Journal of Scientific Research and Management (IJSRM) 3 (11): 3723-27. https://ijsrm.net/index.php/ijsrm/article/view/249.