HAMDUN. Upaya Penyatuan Kalender Islam Internasional oleh Organisasi Kerjasama Islam (OKI). Jurnal Bimas Islam, [S. l.], v. 10, n. 3, p. 473–516, 2017. DOI: 10.37302/jbi.v10i3.32. Disponível em: https://jurnalbimasislam.kemenag.go.id/jbi/article/view/32. Acesso em: 13 jul. 2024.