Lakhiara, M. T. L., A. H. Abdullah, and M. T. Lakhiar. “Analysis of the Relationship Between the Working Environment and Employee Performance in Selected Construction Firms in Karachi City”. Neutron, Vol. 20, no. 2, Jan. 2021, pp. 138 -42, http://ejournal.worldconference.id/index.php/neutron/article/view/86.