BPS, Statistik Indonesia 2018, Badan Pusat Statistik, 2018.
Ditjen Perkebunan, Statistik Perkebunan Indonesia 2015-2017: Komoditas Kelapa Sawit, Kementerian Pertanian, 2016.
A. S. Rahayu, D. Karsiwulan, H. Yuwono, I. Trisnawati, S. Mulyasari, S. Rahardjo, S. Hokermin, V. Paramita, Konversi POME Menjadi Biogas: Pengembangan Proyek di Indonesia, Winrock International, 2015.
MEMR, Handbook of Energy and Economic Statistics of Indonesia 2017, Jakarta: Ministry of Energy and Mineral Resources, 2017.
BPPT, Outlook Energi Indonesia 2018: Energi Berkelanjutan untuk Transportasi Darat, Jakarta, 2018.
U. Priyanto, Perspektif, Potensi dan Ketahanan Energi Indonesia, Jakarta: Tempo, 2018.
S. E. Hosseini and M. A.Wahid, “Feasibility study of biogas production and utilization as asource of renewable energy in Malaysiaâ€, Renewable and Sustainable Energy Reviews, vol. 19, pp. 454-462, Mar. 2013.
BKF, Analisis Biaya dan Manfaat Pembiayaan Investasi Limbah Menjadi Energi Melalui Kredit Program, Badan Kebijakan Fiskal, 2014.
E. Ryckebosch, M. Drouillon, H. Vervaeren, “Technique for Transformation of Biogas to Biomethaneâ€, Biomass and Bioenergy, No. 35, pp. 1633-1645, Elsevier, 2011.
I. U. Khan, M. H. D. Othman, H. Hashim, T. Matsuura, A. F. Ismail, M. R. Arzhandi, and I. W. Azelee, “Biogas as a renewable energy fuel - A review of biogas upgrading, utilisation and storageâ€, Energy Conversion and Management, vol. 150, pp. 277-294, Oct. 2017.
PTPN V, Laporan Tahunan 2016, PT Perkebunan Nusantara V Pekanbaru, 2016.
O. A. Arikan, W. Mulbry, and S. Lansing, “Effect of temperature on methane production from field-scale anaerobic digesters treating dairy manureâ€, Waste Management, no. 43, 2015.
E. I. Ohimain and S. C. Izah, “A review of biogas production from palm oil mill effluents using different configurations of bioreactorsâ€, Renewable and Sustainable Energy Reviews, vol. 70, pp. 242-253, Apr. 2017.
BPPT, “Data Basic Engineering Design PLTBg PKS Sei Pagarâ€, 2017
Keputusan Dirjen Migas No. 247.K/10/DJM.T/2011, “Spesifikasi Bahan Bakar Gas Jenis CNG untuk Transportasi yang Dipasarkan di Dalam Negeriâ€, Jan. 2011.
Q. Sun, H. Li, J. Yan, L. Liu, Z. Yu, and X. Yu, “Selection of appropriate biogas upgrading technology - a review of biogas cleaning, upgrading and utilizationâ€, Renewable and Sustainable Energy Reviews, vol. 51, pp. 521-532, 2015.
N. B. Bakar, L. W. Soon, L. S. Kheang, A. A. Aziz, M. F. M. Saad, and M. K. M. Kamarudin, L. Y. Soon, L. D. Yuen, “Bio-Compressed Natural Gas (Bio-CNG) Production From Palm Oil Mill Effluent (POME)â€, MPOB Information Series, No. 618, Malaysian Palm Oil Board, Jul. 2017
T. U Wien, Biogas to Biomethane Technology Review, Vienna University of Technology, 2012.
F. Bauer, C. Hulteberg, T. Persson, and D. Tamm, Biogas upgrading - Review of commercial technologies, Malmö: SGC Rapport, 2013.
H. H. Huseby, “Biogas Upgrading: Techno-economic Evaluation of Different Technologies Based on Norwegian Potential of Raw Materialsâ€, master thesis, Norwegian University of Life Sciences, May 2015.
L. Yang, X. Ge, C. Wan, F. Yu, and Y. Li, “Progress and perspectives in converting biogas to transportation fuelsâ€, Renewable and Sustainable Energy Reviews, vol. 40, pp. 1133-1152, 2014.
C. S. Park, Fundamentals of Engineering Economics, Pearson Education, Inc., 2004.
USAID, Pembiayaan Pembangkit Listrik Tenaga Biogas, USAID bekerja sama dengan OJK dan UI, 2016.
Ditjen Migas, Neraca Gas Bumi Indonesia Tahun 2016-2035, Direktorat Jenderal Minyak dan Gas Bumi, Jakarta: KESDM, 2016.
MEMR, Handbook of Energy & Economic Statistics of Indonesia 2018, Jakarta: Ministry of Energy and Mineral Resources, 2018.