Haruna, V. N., A. S. Abdulrahman, M. S. Abolarin, and R. A. Muriana. “Evaluation of Sheanut Shell-Reinforced Automotive Brake Pad”. ARID ZONE JOURNAL OF ENGINEERING, TECHNOLOGY AND ENVIRONMENT, Vol. 15, no. 3, Sept. 2019, pp. 510-8, https://www.azojete.com.ng/index.php/azojete/article/view/2.