Shteppa, Konstantin F., author
Rutgers University Press, 1962
Buku Teks
Kneen, Peter, author
University of New York Press, 1984
Buku Teks
Granick, David
Columbia University Press, 1954
Buku Teks
Harvard University Press, 1955
Buku Teks
Yong, H.E. Ong Keng, author
2006
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