Antoniades, Anthony C.
John Wiley & Sons, 1992
Buku Teks
Colletti, Marjan
Ashgate Publishing Limited, 2013
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Daab, 2006
Buku Teks
Hepler, Donald E.
McGraw-Hill, [1965]
Buku Teks
Gemmy International
Words & Visuals Press Pte Ltd, 2011
Buku Referensi