Siska, S., and R. Robin. “Analysis of Work Climate and Workload to Work Loyalty PT. Dodorindo Jaya Abadi Tanjung Morawa”. Jurnal Mantik, vol. 5, no. 4, Feb. 2022, pp. 2371-7, https://www.iocscience.org/ejournal/index.php/mantik/article/view/1979.