S. Lebelo, Ramoshweu, and Kholeka C. Moloi. “Heat Loss Analysis in a Radiating Slab of Variable Thermal Conductivity”. International Journal of Engineering and Technology 7, no. 2.23 (April 20, 2018): 228–231. Accessed February 23, 2026. https://www.sciencepubco.com/index.php/IJET/article/view/11924.