J. T. korletey and E. K. Tettey, “Problem Solving Abilities of Workers: A Study of Some Printing Industries in Kumasi”, IJSBAR, vol. 20, no. 2, pp. 12–19, Feb. 2015, Accessed: Apr. 05, 2026. [Online]. Available: https://gssrr.org/JournalOfBasicAndApplied/article/view/3135