P, S. ., R. . Rilly P, N. . Sari, and A. . Fitrianingsih. “KONSEP DESAIN ECO-SHELTER ANGKUTAN UMUM”. Jurnal Penelitian Sekolah Tinggi Transportasi Darat, vol. 6, no. 2, Dec. 2015, pp. 48 -57, http://114.141.51.86/index.php/jpsttd/article/view/15.