Hariyanto, Annisa Dira, Dimas Tri Rendra Graha, and Firman Afrianto. “Regional Economic Agglomeration and Trans-Sumatra Toll Road Development: A Network and Spatial Review”. Journal of Infrastructure Policy and Management (JIPM) 7, no. 1 (June 30, 2024): 75–95. Accessed July 4, 2024. https://jipm.iigf.co.id/index.php/jipm/article/view/38.