Edeogu, C.O. , et al. “Evaluation of the Occupational Health Hazards Among Workers in Quarry Industry in Abakaliki Using Biochemical Markers”. Journal of Biological Research and Biotechnology, vol. 7, no. 2, Apr. 2025, pp. 544 – 547, https://doi.org/10.4314/br.v7i2.56599.