Amrizal A, Kusumadi K, Fadli F, Samiran S. Alternative Road Economic Feasibility Study Medan-Berastagi Via Tuntungan Intersection-Sibolangit. International Journal of Science, Technology & Management [Internet]. 2023Jan.9 [cited 2024Nov.28];4(1):14-2. Available from: https://ijstm.inarah.co.id/index.php/ijstm/article/view/710