Hariadi, T. K., M. Derks, A. Jamal, and S. Riyadi. “Renewable Energy Investment for Middle and Upper Class Housing Sector in Indonesia: Investigating the Scope for a Change in Policy”. Journal of Electrical Technology UMY, vol. 2, no. 1, Nov. 2019, pp. 12-18, doi:10.18196/jet.2129.