“‘COP Enhancement Of Domestic Refrigerator By Subcooling And Superheating Using Shell &Tube Type Heat Exchanger’”. International Journal of Engineering Research and Advanced Technology (ijerat) (E-ISSN 2454-6135) DOI: 10.31695 IJERAT, vol. 2, no. 5, May 2016, pp. 01-10, https://ijerat.com/index.php/ijerat/article/view/147.