Muharmi, Yulya, and Sri Nadriati. “Analysis Of Employee Discipline Based On Digital Attendance With The K-Means Algorithm Method”. JURNAL TEKNOLOGI DAN OPEN SOURCE 5, no. 2 (December 4, 2022): 115 - 135. Accessed June 29, 2025. http://ejournal.uniks.ac.id/index.php/JTOS/article/view/2628.