1. President Republic of Indonesia, National medium term development plan for 2020-2024 (PerPres No. 18, 2020)
2. Ministry of National Development Planning/BAPPENAS, Government development plan and work plan 2020 (2020) https://www.bappenas.go.id
3. Minister of Transportation of The Republic of Indonesia, National railway master plan (KP 2128, 2018)
4. Tamin O.Z., Transportation planning and modeling (1st Ed.) (ITB, 1997)
5. Warpani S.P., Management of Road Traffic and Transportation (ITB, 2002)