Ayuba Shuaibu. INFLUENCE OF SOCIAL STUDIES TEACHERS MASTERY OF THE SUBJECT MATTER ON STUDENTS’ PERFORMANCE IN KADUNA STATE, NIGERIA. AJHCER [Internet]. 2022 Mar. 31 [cited 2026 Oct. 27];3(1):44-50. Available from: https://publications.afropolitanjournals.com/index.php/ajhcer/article/view/81