Kusumanegara, Indah Suprabawati. “The Analysis of Factors Constructing Employee Productivity in the Operational Field in PT. Sumber Alfaria Trijaya Branch Lombok”. International research journal of management, IT and social sciences 5, no. 1 (January 10, 2018): 55–64. Accessed July 16, 2024. https://sloap.org/journals/index.php/irjmis/article/view/30.