Sholihin, Achmad. “Spiritual Companyn : Strategies to Improve the Quality of Work of Life for Outsourced Employees in Aerofood Catering Service”. Enrichment : Journal of Management 12, no. 6 (February 28, 2023): 4727-4736. Accessed August 24, 2026. https://enrichment.iocspublisher.org/index.php/enrichment/article/view/1151.