Madathil, A. P., S. K. Achar, V. . Moses, U. S. Meda, N. Chetan, C. Vidya, L. A. Raj, and M. Sarode. “Use of Keratin Present in Chicken Feather As a Hydrogen Storage Material: A Review”. International Journal of Engineering Materials and Manufacture, vol. 5, no. 4, Oct. 2020, pp. 148-55, doi:10.26776/ijemm.05.04.2020.04.