Putra Kusuma, Aditya, and Intan Herfiyani. “The Impact of Product Quality and Work Discipline To Work Productivity at PT Indonesia Epson – Cikarang”. SMART : Management Journal 4, no. 1 (October 31, 2023): 20–37. Accessed June 14, 2025. https://ojs.ibm.ac.id/index.php/smart/article/view/369.