edited by Paul G. Jespers, Carlo H. SeÌquin, Fernand van de Wiele
Sijthoff & Noordhoff, 1982
Buku Teks
Prentice-Hall, 1987
Buku Teks
Clarke, Kenneth K.
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Buku Teks
Rashid, Muhammad H.
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Buku Teks
Chirlian, Paul M.
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Buku Teks