Panjaitan, T.W.S. 2005. ASSESMENT OF RENEWABLE ENERGY TECHNOLOGIES (SOLAR THERMAL AND WINDMILS). Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri. 7, 1 (Oct. 2005), 31-40. DOI:https://doi.org/10.9744/jti.7.1.31-40.