Mutiarani, Rena, and Widya Febryari Anita. “A Prediksi Kebangkrutan Pada PT Smartfren Telecom Tbk Dengan Model Z-Score (Tahun 2019-2021)”. Innovative: Journal Of Social Science Research 4, no. 4 (July 23, 2024): 4523–4631. Accessed May 7, 2026. https://j-innovative.org/index.php/Innovative/article/view/13017.