R. H. Nugraha, M. R. Saomi, R. N. Solihat, I. Syafei, I. Musthafa, and M. F. Ramadhan, “The Urgency of Tazkiyatu an-niyah in Learning Activities: A Qualitative Study of Az-Zarnuji’s Thoughts in Ta‘lim al-Muta‘allim”, kwkib, vol. 6, no. 2, pp. 259–280, Dec. 2025.