Budhi, S., T., L., F., D.(2000).First class an introduction to travel n tourism. Edisi Bahasa Indonesia / Dennis L. Foster; penerjemah: Tri Budhi Sastrio (Ed.ke-1,2, Cet. 1).Jakarta:RajaGrafindo Persada.
Gaya MLA
Sastrio, Tri, Budhi., Foster, Dennis, L.."First class an introduction to travel n tourism. Edisi Bahasa Indonesia / Dennis L. Foster; penerjemah: Tri Budhi Sastrio".Ed.ke-1,2, Cet. 1Jakarta:RajaGrafindo Persada,2000.Textbook.