Permana, Ariva Sugandi, Gobi Krishna Sinniah, Rizon Pamardhi-Utomo, and Rufia Andisetyana Putri. 2018. “Dual Formal and Informal Transport Modes towards Quasi-Seamless Transit in a Developing City”. International Journal of Built Environment and Sustainability 5 (3). https://doi.org/10.11113/ijbes.v5.n3.307.