Gaya APA
Nuryaman, ., Winata, A, P. (1985).
Speaking naturally : communication skills in america english .
Tubingen,:
Cambrige University Press.
Gaya MLA
Nuryaman, ., Winata, Arda, Putri.
"Speaking naturally : communication skills in america english".
Tubingen,:
Cambrige University Press,
1985.
Text.