Lukluk Atul Hidayati, Suyanto, Anas Hidayat, and Yuni Istanto. “A Systematic Review: Internal Marketing Strategy in Employee Development to Organizational Performance”. Migration Letters 20, no. 6 (September 2, 2023): 941–953. Accessed June 2, 2024. https://migrationletters.com/index.php/ml/article/view/4535.