TY - JOUR TI - An exact analysis of chemical reaction and porosity effects for mixed convective magnetohydrodynamics Casson fluid AU - MOD OMAR, N.F. AU - ISMAIL, Z. AU - JUSOH, R. AU - AHMAD, M.A. AU - MOHAMAD, A.Q. JO - Sigma Journal of Engineering and Natural Sciences PY - 2026 VL - 44 SP - 262 EP - 272 DO - 10.14744/sigma.2025.00060 ER -