Ayu, Indira, and Diah Hari Suryaningrum. “The Effect of Total Quality Management on Managerial Performance: (Study at PT Kereta Api Indonesia – Persero DAOP VIII Surabaya)”. Sustainable Business Accounting and Management Review 1, no. 2 (September 30, 2019): 72–81. Accessed September 13, 2026. https://www.dhsjournal.id/index.php/SBAMR/article/view/44.