sembiring ED, Sirojuzilam, Purwoko A. Service Potential Analysis Of Passenger Train Operations On Medan “ Belawan Route In Order To Develop Northern Medan Region. J. of Environmental & Development Studies [Internet]. 2022 Mar. 26 [cited 2026 Jun. 18];3(1):09-18. Available from: https://idjpcr.usu.ac.id/jeds/article/view/7518