Ajala, E.O., O.A.A. Eletta, M.A. Ajala, and S.K. Oyeniyi. 2018. “Characterization and Evaluation of Chicken Eggshell for Use As a Bio-Resource”. ARID ZONE JOURNAL OF ENGINEERING, TECHNOLOGY AND ENVIRONMENT 14 (1), 26-40. https://www.azojete.com.ng/index.php/azojete/article/view/95.