Nurhayati, N., N. Muhammadi, N. Permadi, and T. Taufiqurrachman. “The Effect of Motivation and Discipline on Employee Performance Primary Bookshop”. Jurnal Mantik, vol. 5, no. 4, Feb. 2022, pp. 2410-5, https://iocscience.org/ejournal/index.php/mantik/article/view/1985.