Santanu, Tita Rachtawati. “The Influence of Work Environment on employees’ Work Spirit Study at PT. Ultimate Metal Mandala”. Jurnal Mantik 7, no. 4 (February 28, 2024): 3055-3064. Accessed August 24, 2026. https://iocscience.org/ejournal/index.php/mantik/article/view/4567.