Sharma, Bishwa Ram, and ANIMESH AICH. 2014. “Influence of Variable Permeability on Heat and Mass Transfer Due to Free Convection Flow over a Vertical Flat Plate in Porous Medium Considering Soret and Dufour Effects”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 18 (1): 271-85. https://www.gssrr.org/JournalOfBasicAndApplied/article/view/2651.