Bilkisu Mallum H, Modibbo Buba M. PERCEIVED RELATIONSHIP BETWEEN PRINCIPAL’S MANAGERIAL SKILLS AND BUSINESS STUDIES TEACHERS’ JOB PRODUCTIVITY IN PUBLIC JUNIOR SECONDARY SCHOOLS IN ADAMAWA STATE, NIGERIA. bwjournal [Internet]. 2026 Oct. 25 [cited 2026 Oct. 26];. Available from: https://mail.bwjournal.org/index.php/bsjournal/article/view/4472