“Transient Three-Dimensional Natural Convection in Confined Porous Media With Time-Periodic Boundary Conditions”. Journal of Al-Rafidain University College For Sciences ( Print ISSN: 1681-6870 ,Online ISSN: 2790-2293 ) 32, no. 2 (October 17, 2021): 195–227. Accessed November 19, 2024. https://alhadhar.com/raf-journal/index.php/JAUCS/article/view/334.