EFISIENSI WAKTU FERMENTASI DAN VARIASI BRIX TERHADAP HASIL AKHIR KADAR DAN VOLUME BIOETANOL PADA LIMBAH GULA (MOLASSES): EFFICIENCY OF FERMENTATION TIME AND BRIX VARIATION ON FINAL RESULTS AND VOLUME OF BIOETHANOL IN WASTE SUGAR (MOLASSES) . empd 2024, 3 (2), 193-197.