Agah PMP, Shuaibu H, Ibrahim AA. EFFECT OF AUDIO-VISUAL MATERIALS ON SENIOR SECONDARY SCHOOL STUDENTS’ ACADEMIC ACHIEVEMENT IN MATHEMATICS IN YOLA EDUCATION ZONE, ADAMAWA STATE, NIGERIA. bj [Internet]. 2024 Aug. 7 [cited 2026 Apr. 18];:10. Available from: https://www.bwjournal.org/index.php/bsjournal/article/view/2213