JERUSHA PHILIP DANJUMA AND MANGUT MANKILIK. EFFECTS OF DEMONSTRATION STRATEGY ON SENIOR SECONDARY SCHOOL STUDENTS’ RETENTION AND ACHIEVEMENT IN CHEMISTRY IN TARABA STATE, NIGERIA . BW Academic Journal, [S. l.], v. 1, n. 1, p. 11, 2022. Disponível em: https://bwjournal.org/index.php/bsjournal/article/view/624. Acesso em: 26 jul. 2026.