Abdurrahman, A., Dabai, F.N. and Idris, M.I. (2026) “Biomass-Derived Hydrogen Donor and Equilibrated Zeolite Assisted Upgrading of Extra Heavy Bitumen: Reactor Response, Viscosity Reduction, and Compositional Shift”, FUDMA Journal of Sciences, 10(21), pp. 176–182. doi:10.33003/fjs-2026-1021-5826.