Gyawali, S., S. B. Bajracharya, S. R. Tiwari, and H. N. Skotte. “Enhancing Access to Energy Services for Sustainable Development in Rural Communities”. Journal of the Institute of Engineering, vol. 15, no. 3, Oct. 2020, pp. 146-52, doi:10.3126/jie.v15i3.32172.