“Pengaruh E-Wallet Terhadap Efisiensi Keuangan Mahasiswa Politeknik Negeri Medan”. Jurnal Intelek Insan Cendikia 2, no. 12 (December 12, 2025): 18991–19005. Accessed July 4, 2026. https://jicnusantara.com/index.php/jiic/article/view/5830.