Brimmell, J. H.
Oxford University Press, 1959
Buku Teks
Laqueur, Walter Z.
Frederiock A. Praeger, 1956
Buku Teks
Trullinger, O. O.
Pen-In-Hand, 1950
Buku Teks
Rouffaer, G.P.
[publisher not identified], [date of publication not identified]
Buku Klasik
Benny Teh Cheng Guan
Springer, 2012
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