SUBEDI, Abatar. Developing 21st Century Skills while teaching Mathematics at School . Innovative Research Journal, [S. l.], v. 3, n. 2, p. 22–34, 2024. DOI: 10.3126/irj.v3i2.79482. Disponível em: https://nepjol.info/index.php/irj/article/view/79482. Acesso em: 7 dec. 2025.