EGWU, P. E. U. (Ph.D), C. C. UGWU, and J. OKOJIE. “SOME ADVANCES IN THE STUDY OF MENTALLY RETARDED: IMPLICATION FOR EDUCATION AND TRAINING”. Journal of Guidance and Counselling Studies, vol. 1, no. 2, Mar. 2021, https://journals.unizik.edu.ng/jgcs/article/view/2393.