Rizkiansyah, A., & Falikhatun, F. (2021). The indications level of bankruptcy by Altman Z-Score calculation method (case study on subsidiaries of PT Kereta Api Indonesia Persero). Management and Entrepreneurship: Trends of Development, 1(15), 89-97. https://doi.org/10.26661/2522-1566/2021-1/15-06