Rismawati, R., W. Retnowati, and S. Supriadi. “Ulil Albab: An Ancient Methodology for Building Corporate Spiritual Responsibility (CSpR)”. Journal of Applied Business, Taxation and Economics Research, vol. 3, no. 6, Aug. 2024, pp. 739-51, doi:10.54408/jabter.v3i6.353.