Hanifah, Hani. “Analisis Loyalitas Karyawan Terhadap Produktivitas Kerja”. Business Innovation and Entrepreneurship Journal 1, no. 2 (August 26, 2019): 68-71. Accessed July 6, 2025. http://ejournals.fkwu.uniga.ac.id/index.php/BIEJ/article/view/54.