Grover, A., L. Meher, R. Singh, A. Singh, S. Tiwari, S. Dwivedi, and M. Bala. “Biofuels for Defence Use: Past, Present And Future”. Defence Life Science Journal, Vol. 4, no. 1, Dec. 2018, pp. 3-11, doi:10.14429/dlsj.4.12366.