Shinta Palupi, Gunawan, Ririn Kusdyawati, Richki Hardi, and Rana Zabrina. 2024. “Predicting Financial Default Risks: A Machine Learning Approach Using Smartphone Data”. Matrix : Jurnal Manajemen Teknologi Dan Informatika 14 (3):107-18. https://doi.org/10.31940/matrix.v14i3.107-118.