Afraah, S. M., Y. Yuniaristanto, W. Sutopo, and M. Hisjam. “Comparing Total Cost of Ownership of Electric and Conventional Motorcycles in Indonesia”. Jurnal Teknik Industri, vol. 22, no. 2, Aug. 2021, pp. 196-10, doi:10.22219/JTIUMM.Vol22.No2.196-210.