Starr, Cecie, author
Brooks/Cole, 2002
Buku Teks
Clegg, C. J.
John Murray, 1994
Buku Referensi
edited by J.W. Bennett, M.A. Klich
Butterworth-Heinemann , 1992
Buku Teks
edited by Roy H. Doi, Martina McGloughlin
Butterworth-Heinemann, 1992
Buku Teks
Roberto Mauri, editor
[, Springer], 2012
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