M. I. Sari, G. I. Marjani, J. Ratnasari, and K. A. Khairunnisa, “Robert Frager’s Perception of Qalb with Sigmund Freud’s Psychoanalytic Theory (Comparative Study)”, Jurnal Riset Agama, vol. 3, no. 1, pp. 100–114, Jan. 2023.