Bela Elqaweliya, Djam’an Satori, Diding Nurdin, Eka Prihatin, and Nuphanudin, “Spiritual Leadership and Emotional Intelligence of Principal and Teachers at Serba Bakti Suryalaya Islamic Boarding School Foundation”, DJPKM, vol. 7, no. 2, pp. 514-520, Apr. 2023.