KALU, U. E.; OTI, B. A.; OBIOMA, I. E. PERCEIVED PROBLEMS MILITATING AGAINST EFFECTIVE TEACHING AND LEARNING OF SECONDARY SCHOOL PHYSICS IN UMUAHIA NORTH LOCAL GOVERNMENT AREA, ABIA STATE. Journal of Agripreneurship and Sustainable Development, [S. l.], v. 7, n. 2, p. 54–60, 2024. DOI: 10.59331/jasd.v7i2.747. Disponível em: https://njaat.com.ng/index.php/jasd/article/view/747. Acesso em: 12 dec. 2024.