Sakinah, Nur Novi Trianti, and Puji Muniarty. “Bankruptcy Prediction Analysis Using the Altman Z-Score, Zmijewski, Springate and Grover Methods at PT. Smartfren Telecom Tbk”. Profita : Komunikasi Ilmiah Akuntansi Dan Perpajakan, vol. 16, no. 1, May 2024, https://training-ojs3-publikasi.mercubuana.ac.id/index.php/profita/article/view/11694.