Studyana, M. D. , A. Sjafruddin, I. P. Kusumantoro, and Y. Soeharyadi. “Green Time Setting at Signalized Intersections through Numerical and Linguistic Variables With the Fuzzy Logic Model”. International Journal of Advanced Science and Technology, Vol. 28, no. 8s, Oct. 2019, pp. 34 -1, http://sersc.org/journals/index.php/IJAST/article/view/833.