ZUMRUD, A.; SURURIN; NATA, A.; BUDIMAN, S. Constructing a Tazkiyatun Nafs-Based Model for Developing Students’ Spiritual Intelligence through Riyadhoh Amaliah Practices in an Islamic Boarding School. GHAITSA : Islamic Education Journal , v. 7, n. 3, p. 348-359, 17 Oct. 2026.