Halmi, M. I. E., and M. Y. Shukor. “Mathematical Modelling of Zinc-Induced Inhibition on Fermentative Biohydrogen Production by Granular Sludge”. Journal of Environmental Bioremediation and Toxicology, vol. 8, no. 1, July 2025, pp. 59-68, doi:10.54987/jebat.v8i1.1126.