TSAFE, A. K. CLASS SIZE AND STUDENTS’ ACADEMIC PERFORMANCE IN MATHEMATICS AND SCIENCE IN SECONDARY AND PRIMARY SCHOOLS IN NIGERIA. Sokoto Educational Review, [S. l.], v. 15, n. 2, p. 47–54, 2014. DOI: 10.35386/ser.v15i2.168. Disponível em: https://sokedureview.org/index.php/SER/article/view/168. Acesso em: 13 jul. 2024.