Nuru, R. A., A. Y. Isah, and B. T. Nuhu. “Concept-Mapping: An Innovative Pedagogy to Enhance Academic Performance in Science Among Primary School Children in Zaria, Nigeria”. Sokoto Educational Review, vol. 19, no. 1, Aug. 2020, pp. 27-35, doi:10.35386/ser.v19i1.80.