1. Forest Watch Indonesia, "Deforestasi Tanpa Henti, Potret Deforestasi di Sumatera Utara, Kalimantan Timur, dan Maluku Utara," Forest Watch Indonesia, Bogor, 2018.
2. R. Gakenheimer, L. T. Molina, J. Sussman, C. Zegras, A. Howitt, J. Makler, R. Lacy, R. Slott and A. Villegas, "The MCMA Transportation System: Mobility and Air Pollution," in Alliance for Global Sustainability Bookseries (Science and Technology: Tools for Sustainable Development), Dordrecht, Springer, 2002, pp. 213–284.
3. Economic, Socio-Political and Environmental Risks of Road Development in the Tropics
4. Direktorat Jenderal Bina Marga, "Pedoman Pemantauan Lingkungan Hidup Bidang Jalan," Jakarta, 2017.
5. Asian Development Bank, Rural Road Environmental Management Standard, Philippines, 2006.