Tarigan, Nirwaty. “Promotion Strategies on the Number of Arrival Guests by the Reception Staff at Sentral Seaview Hotel Penang, Malaysia”. Enrichment : Journal of Management 12, no. 1 (August 31, 2021): 330-332. Accessed April 20, 2026. https://enrichment.iocspublisher.org/index.php/enrichment/article/view/227.