Gaya APA
Sahanaya, W., Lindeck, J. (2002).
IELTS preparation and practice : listening and speaking (2nd.ed.).
Oxford:
Oxford University Press.
Gaya MLA
Sahanaya, Wendy., Lindeck, Jeremy.
"IELTS preparation and practice : listening and speaking".
2nd.ed.
Oxford:
Oxford University Press,
2002.
Teks.