Endalkachew Teshome Ayele, et al. “A Two Stage Interval-Valued Neutrosophic Soft Set Traffic Signal Control Model for Four Way Isolated Signalized Intersections”. Neutrosophic Sets and Systems, vol. 38, Dec. 2020, pp. 544-75, https://fs.unm.edu/nss8/index.php/111/article/view/4208.