Sarkar, Md Abu Hanif. “Interior Regularity to the Signed Solution of the Singular Doubly Nonlinear Parabolic Equations”. Journal of Bangladesh Academy of Sciences 47, no. 2 (December 21, 2023): 241–248. Accessed December 4, 2024. https://banglajol.info/index.php/JBAS/article/view/68520.