Abba, M. A., B. Kadai, A. B. Garga, A. M. Musa, and M. Hassan. “ Assessment of the Level of Quality Control of Cement and Sandcrete Block Materials Available in Maiduguri Metropolis”. ARID ZONE JOURNAL OF ENGINEERING, TECHNOLOGY AND ENVIRONMENT, Vol. 21, no. 3, Sept. 2025, pp. 804 -10, https://www.azojete.com.ng/index.php/azojete/article/view/1133.