Saleh, Reza, and Dean Subhan Saleh. “Comparative of Leadership in Public Service: In-Group and Out-Group”. Eqien - Jurnal Ekonomi dan Bisnis 13, no. 04 (December 15, 2024): 468–480. Accessed July 22, 2025. http://stiemuttaqien.ac.id/ojs/index.php/OJS/article/view/1971.