T. A. Gyamfi and R. Boadaa, “The Effects of Procurement Management Practices on Risk Management in Construction Firms”, IJSBAR, vol. 24, no. 3, pp. 403–420, Oct. 2015, Accessed: Dec. 07, 2025. [Online]. Available: https://gssrr.org/JournalOfBasicAndApplied/article/view/4605