Ayu I, Suryaningrum DH. The Effect of Total Quality Management on Managerial Performance: (Study at PT Kereta Api Indonesia – Persero DAOP VIII Surabaya). SBAMR [Internet]. 2019Sep.30 [cited 2024Dec.23];1(2):72-1. Available from: https://dhsjournal.id/index.php/SBAMR/article/view/44