Kaoje, A. U., Haliru, L., Raji, M. O., Ango, U. M., & Ango, J. T. (2018). Knowledge, Perception and Practice of Safety Measures Related to Workplace Hazards among Manual Stone Crushing Workers in Sokoto, Nigeria. International Journal of Occupational Safety and Health, 8(1), 8–18. https://doi.org/10.3126/ijosh.v8i1.22923