Gorton, Gary B., author
Oxford University Press, 2012
Buku Teks
Eckbo, Garrett, author
McGraw-Hill, 1969
Buku Teks
Salmiah Alias, author
Ameen Kreatif, 2011
Buku Teks
Hart, B. H. Liddell
George Allen and Unwin, 1946
Buku Teks
Ratzan, Lee, author
[American Library association, American Library association], 2004
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