NWOSU, B. O.; SAMUEL, N. N. ACHIEVEMENT MOTIVATION AND SELF-CONCEPT AS PREDICTOR OF ACADEMIC ACHIEVEMENT OF SECONDARY SCHOOL STUDENTS IN BIOLOGY IN ANAMBRA. UNIZIK Journal of STM Education, [S. l.], v. 5, n. 1, p. 64–74, 2022. Disponível em: https://journals.unizik.edu.ng/jstme/article/view/1498. Acesso em: 19 apr. 2024.