2020Ghimire A., Gyawali R., Lens N.L. P., Lohani S. P. *(2021) Technologies for Removal of Hydrogen Sulfide (H2S) from Biogas, Emerging Technologies and Biological Systems for Biogas Upgrading, Elesvier.
2018Lohani S.P.*, Havukainen J. (2018) Anaerobic Digestion: Factors Affecting Anaerobic Digestion Process. In: Varjani S., Gnansounou E., Gurunathan B., Pant D., Zakaria Z. (eds) Waste Bioremediation. Energy, Environment, and Sustainability. Springer, Singapore.
2013Renewable Energy for Sustainable Future, ISBN: 978-1-477554-890, iConcept Press 2013.
2012New Ways of Renewables for Sustainable Buildings – A Thermodynamic Approach, ISBN: 978-3659112973, LAP LAMBERT Academic Publishing 2012.