Gaya APA

Hover, D, -, A. (1986). THINK T.W.I.C.E: Communication activities for beginner to intermediate students (Cetakan 3: 1988). New York: Press Syndicate of the University of Cambridge.

Gaya MLA

Hover, David, -, A. "THINK T.W.I.C.E: Communication activities for beginner to intermediate students". Cetakan 3: 1988 New York: Press Syndicate of the University of Cambridge, 1986. Text.