AZIZ, L. A.; KASIM, A. R. M.; SALLEH, M. Z.; ZOKRI, S. M. COMPARATIVE STUDY ON FREE VERSUS MIXED CONVECTION IN MHD BOUNDARY LAYER FLOW OF VISCOELASTIC MICROPOLAR FLUID OVER A SPHERE. BAREKENG: Jurnal Ilmu Matematika dan Terapan, v. 20, n. 4, p. 2997-3010, 24 ago. 2026.