Nurul Hidayah, Tobroni Tobroni, Khozin Khozin, and Abdul Haris, “Development of High Quality Human Resources Through Qur’anic Spiritual Intelligence at SMAIT Ash-Shohwah Berau, East Kalimantan”, IJIER, vol. 2, no. 3, pp. 92–106, Aug. 2025.