Pochhacker, Franz, author
Routledge, 2004
Buku Teks
Brown, Judith M, author
Cambridge University Press, 2006
Buku Teks
Knickerbocker, K.L. (Kenneth Leslie), author
Holt, Rinehart and Winston, 1963
Buku Teks
Kaufmann, Magdalena
Springer, 2012
eBooks
K.L. Knickerbocker ... [and others]
Harcourt, Brace Jovanovics College Publishers, 1985
Buku Teks