1. Singh, Y., R. Garg, and S. Kumar, Effect of load on friction and wear characteristics of Jatropha oil bio-lubricants.
2. Singh, Y., A. Singla, and S. Bhurat, Tribological behavior of pongamia oil-based biodiesel blended lubricant at different loads.
3. Singh, Y., R. Garg, and S. Kumar, Comparative tribological investigation on EN31 with pongamia and jatropha as lubricant additives.
4. Gemsprim, M.S., N. Babu, and S. Udhayakumar, Tribological evaluation of vegetable oil-based lubricant blends. Materials Today: Proceedings, 2020.
5. Surana, A.R., et al., Development of mahua oil as a lubricant additive and its tribological characteristics. Materials Today: Proceedings, 2020. 25: p. 724–728.