“Invariant Solution of Viscoelastic Fluid flow in Channels without Porous Media Attached with Constitutive Model of Oldroyd–B Resolved By Symmetry Method” (2021) Sindh University Research Journal - SURJ (Science Series), 49(1). Available at: https://sujo.usindh.edu.pk/index.php/SURJ/article/view/2956 (Accessed: 23 October 2026).