Gaya APA

HSU, C, H., Gartner, W, C. (2012). The Routledge Handbook of Tourism Research . USA: Routledge.

Gaya MLA

HSU, Cathy, H.C.., Gartner, William, C.. "The Routledge Handbook of Tourism Research". USA: Routledge, 2012. BUKU.