Gaya APA

UNTARI, N, P. (2010). The roles of guest relation officer in handling guests' needs at novotel solo . : Universitas Sebelas Maret.

Gaya MLA

UNTARI, Nugrahenny, Putri. "The roles of guest relation officer in handling guests' needs at novotel solo". : Universitas Sebelas Maret, 2010. TA.