“Konversi Oil Palm Frond (OPF) Sebagai Bahan Baku Bioetanol Dengan Proses Pretreatment Organosolv dan Hidrolisa Asam: Oil Palm Frond (OPF) Conversion As Bioethanol Raw Material With Organosolv Pretreatment Process and Acid Hydrolysis” (2019) Talenta Conference Series: Science and Technology (ST), 2(1), pp. 66–71. doi:10.32734/st.v2i1.315.