A. Zainuddin and S. Zulaekhah, “The Ethics of the Da’i from the Perspectives of Imam Abdullah Al-Haddad and Immanuel Kant (A Comparative Study of Islamic Ethics and Deontological Ethics): Etika Da’i Perspektif Imam Abdullah Al-Haddad dan Immanuel Kant (Studi Komparatif Etika Islam dan Etika Deontologis)”, acopen, vol. 11, no. 2, p. 10.21070/acopen.11.2026.15073, Jul. 2026.