PAUL, M. C.; AKANWA, U. N.; UKA, N. K. Effect of Polya Model Problem-Solving Instructional Strategy on Academic Achievement and Retention in Mathematics among Senior Secondary School Students in Akwa Ibom State. Journal of Research in Education and Society (JRES) , [S. l.], v. 16, n. 3, p. 148–157, 2026. Disponível em: https://icidr.org.ng/index.php/Jres/article/view/1842. Acesso em: 25 jan. 2026.