IDRIS, M. K., H. M. JADA, and U. . GARBA. “SCHOOL INSTRUCTIONAL SUPERVISION AND DISPARITIES IN THE ACHIEVEMENT OF EFFECTIVE TEACHING AND LEARNING IN NIGERIAN POST - BASIC SECONDARY SCHOOLS”. Sokoto Educational Review, vol. 24, no. 2, Sept. 2025, pp. 104-11, https://sokedureview.org/index.php/SER/article/view/570.