1. R. Chand, S.K. Srivastava, J. Singh, Changing structure of rural economy of india- implications for employment and growth, 2017.
2. The human-powered home: choosing muscles over motors;Muscles;World Futur. Rev.,2009
3. J.P. Modak, Proceedings of twelfth world congress in mechanism and machine science, Besancon, France: human powered flywheel motor : concept, design, dynamics and applications, IFToMM, 2007. [Online]. Available: https://www.dmg-lib.org/dmglib/streambook/index.jsp?bookid=20401009. [Accessed: 03-Sep-2019].
4. J.P. Modak, D. Sc (Engg & Tech) human powered flywheel motor: concept, design, dynamics and application, 2016.
5. Design and development of a human-powered machine for the manufacture of lime-flyash-sand bricks;Modak;Hum. Power Technical J. IHPVA,1998