[1] A. Kumer, et al. Int. j. New Chem., 6, 236 (2019)
[2] M.S. Zolfaghari. Int. j. New Chem., 5, 558 (2018)
[3] E. Darouneh, and M. Zargan, Int. j. New Chem., 5, 493 (2018)
[4] S.A.Khan, et al. Renewable Sustainable Energy Rev., 13, 2361 (2009)
[5] Deublein, D. and A. Steinhauser, Biogas from waste and renewable resources: an introduction. 2011: John Wiley & Sons.
[6] Priyadarshi, D., Biodiesel Production From Waste Materials: Process Development and Performance Evaluation (2019).
[7] Gomez, C.D.C., Biogas as an energy option: an overview, in The Biogas Handbook. 2013, Elsevier. p. 1-16
[8] E. Valijanian, et al., Biogas production systems, in Biogas., Springer 95-116 (2018)
[9] R.L.Grando, et al., Renewable Sustainable Energy Rev., 80, 44 (2017)
[10] B.Deepanraj, V. Sivasubramanian, and S. Jayaraj,. Res. J. Chem. Environ. 18, 5 (2014)
[11] J. Ariunbaatar, et al., Appl. Energy., 123, 143 (2014)
[12] M.A. Rajaeifar., et al. Renewable Sustainable Energy Rev., 79, 414 (2017)
[13] R. Campuzano,. and S. González-Martínez,. J. waste Manage., 54, 3 (2016)
[14] S. Mirmohamadsadeghi, et al. Bioresource Technology Reports., 7, 100202 (2019)
[15] M. Aghbashlo, et al. Energy J., 149, 623 (2018)
[16] S. Baroutian, et al. J. waste Manage., 71, 494 (2018)
[17] E. Papargyropoulou, et al. J. Cleaner Prod., 76, 106 (2014)
[18] T. Spranghers, et al. J. Sci. Food Agric., 97, 2594 (2017)
[19] C.P.C.Bong, et al. J. Cleaner Prod., 172, 1545 (2018)
[20] H.Fisgativa, , A. Tremier, and P. Dabert. J. waste Manage., 50, 264 (2016)
[21] S. Zareei. Renew. Energy,. 118, 351 (2018)
[22] A.C.Wilkie,Treatment, Handling, and Community Relations., 301, 312 (2005)
[23] Hobson, P.N. and A.D. Wheatley, Anaerobic digestion: modern theory and practice. 1993: Elsevier applied science London, UK.
[24] R. Kothari,et al. Renewable Sustainable Energy Rev., 39, 174 (2014)
[25] D.Y. Leung, and J. Wang. Int. J. Green Energy., 13, 119 (2016)
[26] W. Gujer, and A.J. Zehnder. Water sci. technol., 15, 127 (1983)
[27] J.B. Holm-Nielsen. T. Al Seadi, and P. Oleskowicz-Popiel. Bioresour. technol., 100, 5478 (2009)
[28] J. Mata-Alvarez, S. Mace, and P. Llabres. Bioresour. technol., 74, 3 (2000)
[29] F. Xu, et al. Bioresour. technol., 247, 1047 (2018)
[30] Y. Meng, et al. Bioresour. technol., 185, 7 (2015)
[31] C. Gou, et al. Chemosphere., 105, 146 (2014)
[32] C. Zhang, et al. Renewable Sustainable Energy Rev., 38, 383 (2014)
[33] P.C. Pullammanappallil, et al. Bioresour. technol., 78, 165 (2001)
[34] C. Mao, et al. Renewable Sustainable Energy Rev.,45, 540 (2015)