Yeheyis, M., Reza, B., Hewage, K., Y. Ruwanpura, J. and Sadiq, R. 2016. Evaluating motivation of construction workers: a comparison of fuzzy rule-based model with the traditional expectancy theory. Journal of Civil Engineering and Management. 22, 7 (Jul. 2016), 862-873. DOI:https://doi.org/10.3846/13923730.2014.914103.