S. O. . Apori and M. A. . Nkrumah, “Improving the use of Competence-Based Training (CBT) in polytechnic education in Ghana: an evaluation of the civil engineering department of Takoradi Polytechnic: Improving the use of competence-based training (CBT) in polytechnic education in Ghana: an evaluation of the civil engineering department of Takoradi Polytechnic”, JEM, vol. 5, pp. 117–133, Nov. 2008.