Gunawan, A., C. E. Rustana, and I. Sugihartono. “RANCANG BANGUN BATTERY CHARGE CONTROLLER DUAL SUMBER PLTS DAN PLN SEBAGAI SUPLAI CHARGER LAPTOP”. PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL), Vol. 4, Oct. 2015, pp. SNF2015-VI, http://103.8.12.212:33180/unj/index.php/prosidingsnf/article/view/5155.