Sudi, S., F. Md Sham, and P. Yama. “Kecerdasan Spiritual Menurut Perspektif Hadis: Spiritual Intelligence by Hadiths Perspective”. Al-Irsyad: Journal of Islamic and Contemporary Issues, vol. 2, no. 2, Dec. 2017, pp. 1-11, doi:10.53840/alirsyad.v2i2.14.