Kovacic, Michael L.
Prindle, Weber and Schmidt , 1971
Buku Teks
Ibnu Syamsi, author
Bina Aksara, 1989
Buku Teks
edited by Anthony G. McGrew
Manchester University Press, 1985
Buku Teks
Paik, C. M., 1931-, author
McGraw-Hill, 1973
Buku Teks
Cambridge University Press, 2004
Buku Teks