Zulfikar, E. 2021. Pemahaman Hadis Yusuf al-Qardhāwy: Telaah atas Kaidah al-Tamyīz Bayna al-Wasīlah al-Mutaghayyirah wa al-Hadhf al-Thābit. Islamika Inside: Jurnal Keislaman dan Humaniora. 5, 2 (Feb. 2021), 143-173. DOI:https://doi.org/10.35719/islamikainside.v5i2.65.