F. N. Inyang, U. J. Utibe, P. J. Uko, and D. E. Uboh, “Effect of Guided-Discovery and Expository Instructional Methods on Secondary Schools Students Academic Achievement in Physics in Ikot Abasi Local Government Area, Akwa Ibom State, Nigeria”, JRES, vol. 14, no. 2, pp. 80–90, Aug. 2023.