Onukwube Henry N. “Leader Influences on Training Effectiveness of Construction Professionals: The Case of Nigeria”. Journal of Construction in Developing Countries 17, no. 2 (December 31, 2012): 67–79. Accessed September 14, 2026. https://ejournal.usm.my/jcdc/article/view/jcdc_vol17-no-2-2012_4.