Roldan, A. S., & Ilano, E. (2008). Introduction to hotel and front office operations. AR Skills Development & Management Services.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRoldan, Amelia S., और Erlinda Ilano. Introduction to Hotel and Front Office Operations. Paranaque: AR Skills Development & Management Services, 2008.
एमएलए (9वां संस्करण) प्रशस्ति पत्रRoldan, Amelia S., और Erlinda Ilano. Introduction to Hotel and Front Office Operations. AR Skills Development & Management Services, 2008.
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