Tobin, John
Oxford University Press, 2012
Buku Teks
Khoshkish, Anoushiravan
Editions Generales, 1954
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Mas Achmad Santosa
2005
Artikel Jurnal
Evans, Christine
Cambridge University Press, 2012
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Mackie, Margaret
Angus and Robertson, 1970
Buku Teks