Zubairu, P. T., Hassan, A. B., Muriana, R. A., & Musa, N. A. (2021). Effect of Shea Nutshell Ash on the Mechanical Properties of Cast Al6061. ARID ZONE JOURNAL OF ENGINEERING, TECHNOLOGY AND ENVIRONMENT, 17(1), 1-8. Retrieved from https://www.azojete.com.ng/index.php/azojete/article/view/399