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. BW Academic Journal, [S. l.], 2026. Disponível em: https://mail.bwjournal.org/index.php/bsjournal/article/view/4472. Acesso em: 26 oct. 2026.