SULE MUHAMMAD; SHEU ADARAMAJA LUKMAN. Validity and Reliability of Civic Education Achievement Tests Among Senior Secondary School Students in Gusau Local Government Area, Zamfara State. Amandemen: Journal of Learning, Teaching and Educational Studies, [S. l.], v. 4, n. 1, p. 9–22, 2026. DOI: 10.61166/amd.v4i1.109. Disponível em: https://amandemen.my.id/index.php/i/article/view/109. Acesso em: 16 apr. 2026.