Agustine, Laurent, and Feronika Berutu. “Analisis Pengaruh Customer Relationship Management Terhadap Kepuasan Tamu Di Four Seasons Hotel Jakarta”. Jurnal Ilmiah Global Education 5, no. 3 (September 8, 2024): 2014–2026. Accessed May 19, 2025. https://ejournal.nusantaraglobal.or.id/index.php/jige/article/view/3090.