Gaya APA

Rangkuti, S. (1992). English For Specific Purposes;Tourism Indonesia socio-cultural life and travel (j-1). Jakarta: Dian Rakyat.

Gaya MLA

Rangkuti, Sofia. "English For Specific Purposes;Tourism Indonesia socio-cultural life and travel". j-1 Jakarta: Dian Rakyat, 1992. 400_Language.