APERIN, Rhiza. Evaluating the Customer Service Delivery System (CSDS) of Accommodation Establishments in the Second District of Albay: Challenges and Strategies for Enhancement. International Journal of Education, Research, and Innovation Perspectives, Philippines, v. 2, n. 4, p. 434–450, 2026. DOI: 10.5281/zenodo.19505264. Disponível em: https://ijerip.erio.org.ph/index.php/articles/article/view/419. Acesso em: 11 apr. 2026.