Harmini, Harmini, dan Titik Nurhayati. “DESAIN SISTEM ROOFTOP OFF GRID PANEL SOLAR PHOTOVOLTAIC”. Jurnal Pengembangan Rekayasa dan Teknologi, vol. 1, no. 2, Oktober 2017, hlm. 47-51, https://doi.org/10.26623/jprt.v13i2.931.