Ahmed, S., A. H. Memon, N. A. Memon, A. N. Laghari, M. A. Akhund, and H. U. Imad. 2018. “Common Factors of Cost Escalation in Construction Industry of Pakistan”. Engineering, Technology & Applied Science Research 8 (6). Greece:3508-11. https://doi.org/10.48084/etasr.2278.