Siahaan, R., C. Sitindaon, and O. Sitohang. “Motorcycle Riders’ Perception of the Characteristics of Paratransit In Medan, Indonesia”. Jurnal Rekayasa Konstruksi Mekanika Sipil (JRKMS), vol. 3, no. 1, Apr. 2020, pp. 27-38, doi:10.54367/jrkms.v3i1.700.