SINGH, Balraj. Character education in the 21st century. Journal of Social Studies , [S. l.], v. 15, n. 1, p. 1–12, 2019. DOI: 10.21831/jss.v15i1.25226. Disponível em: https://journal.uny.ac.id/index.php/jss/article/view/25226. Acesso em: 8 mar. 2026.