Nawangsari, Lenny Christina, Ahmad Hidayat Sutawidjaya, Arief Bimantoro Suharko, and Dudi Rudianto. “Organizational Citizenship Behavior for The Environment in University”. International Review of Management and Marketing 11, no. 2 (June 10, 2021): 67–73. Accessed November 9, 2024. https://econjournals.org.tr/index.php/irmm/article/view/10464.