Ramzan, M., S. Qureshi, M. Ullah, M. Memon, and M. Siddiqui. “Assessment of the Extent of Implementation of Quality Management System (QMS) and Cost of Quality (COQ) Concepts – A Case from a Developing Country”. The Journal of Engineering Research [TJER], vol. 14, no. 2, June 2017, pp. 145-5, doi:10.24200/tjer.vol14iss2pp145-155.