Priyanto, Achmad Fauzi Kamal, Debie Dahlia, and Besral Besral. “Terapi Spiritual Doa Tafakur Terhadap Peningkatan Kesejahteraan Pasien Kanker: A Systematic Review : Spiritual Therapy of Tafakur Prayer to Increase the Well-Being of Cancer Patients: A Systematic Review”. Journal of Holistics and Health Sciences, vol. 5, no. 2, Nov. 2023, pp. 251-66, doi:10.35473/jhhs.v5i2.341.