Pengaruh Variasi Massa Ragi dan Waktu Fermentasi Sampah Enceng Gondok (Eichhornia Crassipes) Terhadap Kadar Bioetanol The Effect Of Variations In Yeast Mass And Fermentation Time Of Water Hyacinth Waste (Eichhornia Crassipes) On Bioethanol Levels | Bawazir | Jurnal Smart Teknologi