Hamzah, Muh. Nasir, et al. “Importance of Work Motivation and the Culture of the Company to Improve Organizational Citizenship Behavior”. MIX: JURNAL ILMIAH MANAJEMEN, vol. 12, no. 2, June 2022, pp. 247-62, https://publikasi.mercubuana.ac.id/index.php/Jurnal_Mix/article/view/15083.