J. Din, R. Din, Y. Yah Jusoh, and M. Basheer Jasser, “Towards Employing Metrics in Measuring the Quality of Software Safety Critical Systems and Managing their Development”, IJET, vol. 7, no. 4.31, pp. 135–139, Dec. 2018, doi: 10.14419/ijet.v7i4.31.23356.