MOHAMMED SIRAJO ADAMU; ALIYU MOH’D BELLO. THE INFLUENCE OF TEACHER PROFESSIONALISM ON THE ACADEMIC PERFORMANCE IN ECONOMICS AMONG, SECONDARY SCHOOL STUDENTS IN GOMBE LGA OF GOMBE STATE, NIGERIA. Journal of African Sustainable Development, Nigeria, v. 4, n. 2, 2024. Disponível em: https://berkeleypublications.com/bjasd/article/view/180.. Acesso em: 25 sep. 2025.