OMEODU, Muvoke Doris; NWEKE, Nwanne Okechukwu; CHUKU, Maureen Sarima. Quality Assurance and the ASEI-PDSI Lesson Approach in Teaching Mathematics in Junior Secondary Schools in Etche Local Government Area, Rivers State. Faculty of Natural and Applied Sciences Journal of Mathematics, and Science Education, [S. l.], v. 7, n. 1, p. 15–20, 2025. DOI: 10.63561/fnas-jmse.v7i1.1058. Disponível em: https://fnasjournals.com/index.php/FNAS-JMSE/article/view/1058. Acesso em: 13 feb. 2026.