R. Prasanth, M. Muralidharan, A. Arun, S. Ravi Shankar, S. Vinoth, and Y. Vinod Kumar, “Analysis of Energy Loss through Conventional Refractory Lining in Refinery Heater and its Conservation Measures”, IJET, vol. 7, no. 3.34, pp. 118–121, Sep. 2018, doi: 10.14419/ijet.v7i3.34.18786.