RIKA, Rismawati; NUR, Kholis. Faktor Determinan Menurunnya Minat Belajar Matematika Anak Down Syndrome SDN Betet 1 Kediri (Determinants of Decreased Interest in Learning Mathematics Among Children with Down Syndrome at SDN Betet 1 Kediri). Happiness: Journal of Psychology and Islamic Science, [S. l.], v. 8, n. 2, p. 125–139, 2025. DOI: 10.30762/happiness.v8i2.1158. Disponível em: https://jurnalfuda.iainkediri.ac.id/index.php/happiness/article/view/1158. Acesso em: 1 apr. 2025.