“EVALUATION AND CHARACTERIZATION OF GAKEM AND ABOUCHICHE CLAY SAMPLES IN BEKWARRA LGA OF CROSS RIVER STATE FOR USE AS REFRACTORY MATERIALS”. Nigerian Journal of Technology 36, no. 3 (June 30, 2017): 844–848. Accessed April 23, 2026. https://www.nijotech.com/index.php/nijotech/article/view/1400.