Subarjo, Abdul Haris, Benedictus Mardwianta, and Nurfi Ahmadi. 2020. “Increased Knowledge of Pringwulung Youth Group, Sleman, on the Use of Solar Energy to Support Energy Security”. MITRA: Jurnal Pemberdayaan Masyarakat 4 (2):142-51. https://doi.org/10.25170/mitra.v4i2.1158.