Madathil, Akhil Punneri, Siddarth Krishnaraja Achar, Vinutha Moses, Ujwal Shreenag Meda, N Chetan, C Vidya, Lourdu Antony Raj, and Manjula Sarode. “Use of Keratin Present in Chicken Feather As a Hydrogen Storage Material: A Review”. International Journal of Engineering Materials and Manufacture 5, no. 4 (October 20, 2020): 148-155. Accessed January 26, 2021. http://deerhillpublishing.com/index.php/ijemm/article/view/144.