Roldan, A. S., & Ilano, E. (2008). Introduction to hotel and front office operations. AR Skills Development & Management Services.
Lua i Stíl Chicago (17ú heag.)Roldan, Amelia S., agus Erlinda Ilano. Introduction to Hotel and Front Office Operations. Paranaque: AR Skills Development & Management Services, 2008.
Lua MLA (9ú heag.)Roldan, Amelia S., agus Erlinda Ilano. Introduction to Hotel and Front Office Operations. AR Skills Development & Management Services, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.