Ukpong-Udo, K., J. N. Ugbebor, and C. Wejie-Okachi. “Ergonomic Risk Assessment of Factory Workers in Selected Wooden Sawmill Industries in Port Harcourt, Rivers State”. European Journal of Applied Sciences, vol. 11, no. 5, Oct. 2023, pp. 318-31, doi:10.14738/aivp.115.15433.