Olmstead, Clifton E.
Prentice-Hall, 1960
Buku Teks
Brown, L. Carl
Columbia University Press, 2000
Buku Teks
Saunders, David, 1940-
Routledge, 1997
Buku Teks
Seo, Myengko
Routledge, Taylor & Francis Group, 2013
Buku Teks
Gideon Sapir
Cambridge University Press, 2018
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