F. A. Sugandi, U. Ubaidillah, and A. Gafarov, “Signified Deviations in Federer’s What Every American Needs to Know About the Qur’an: A Saussurean Analysis of Islamic Themes”, OKARA JURNAL BAHASA DAN SASTRA, vol. 19, no. 1, pp. 35–49, May 2025.