Pratama, Abdi, Akihiro Tokai, and Kojima Naoya. 2018. “Study of the Incentive Caused by the Scrappage Program in Accelerating Old-Car Replacement in Order to Reduce Gas Emissions from Gasoline Passenger Cars in Indonesia”. Asian Journal of Applied Sciences 6 (6). https://doi.org/10.24203/ajas.v6i6.5580.