Olukoya, T. O., and A. S. Jimoh. “The Effect of Concept Mapping Strategy in Social Studies Instruction on Students’ Learning Outcomes in Junior Secondary Schools, Lagos State, Nigeria”. CMU Academy Journal of Management and Business Education, vol. 1, no. 2, Sept. 2022, pp. 1-10, doi:10.53797/cjmbe.v1i2.1.2022.