Collier, Gary, author
John Wiley & Sons, 1994
Buku Teks
Barnard, Alan, author
Cambridge University Press, 2011
Buku Teks
Walter Reich ... [and others] ; penerjemah, Sugeng ; editor, Jiwo Wungu
Murai Kencana, 2003
Buku Teks
edited by Henry Wechsler, Leonard Solomon, Bernard M. Kramer
Holt, Rinehart and Winston, 1970
Buku Teks
Golightley, Malcom, author
Learning matters Ltd., 2008
Buku Teks