ELVI, Mariyanti; AZMI, Roma Doni; UMARA, Yudi. Development of ESD-integrated mathematics teaching materials in the maritime context of the Riau islands. Jurnal Absis: Jurnal Pendidikan Matematika dan Matematika, [S. l.], v. 9, n. 1, p. 156–168, 2026. DOI: 10.30606/absis.v9i1.4108. Disponível em: https://journal.upp.ac.id/index.php/absis/article/view/4108. Acesso em: 8 may. 2026.