1. Ministry of Energy and Mineral Resources Indonesia, Regulation No.12/2015 about Provision, Utilization and Business Administration of Biofuel as Other Fuels (Ministry of Energy and Mineral Resources Indonesia, Jakarta, 2015).
2. Yudiartono, Anindhita, S. Agus, L. M. A. Wahid, and Adiarso, Outlook Energi Indonesia 2018: Energi Berkelanjutan untuk Transportasi Darat, (Center of Assessment for Process and Energy Industry, Jakarta, 2018), pp.1–7
3. A. S. Amarasekara, Handbook of Cellulosic Etanol (Scrivener Publishing LLC., Beverly, MA, 2014).
4. K. Ghasemzadeh, E. Jalilnejad, A. Basile, “Production of bioalcohol and biomethane” in Bioenergy Systems for the Future: Prospects for Biofuels and Biohydrogen, edited by F. Dalena, A. Basile and C. Rossi (Woodhead Publishing, Cambridge, 2017), pp. 61–86.
5. A. Faik, “Plant Cell Wall Structure-Pretretmen the Critical Relationship in Biomass Conversion to Fermentable Sugars”, in Green Biomass Pretretmen for Biofuels Production, edited by T. Gu (Springer, New York, 2013), pp.1–30.