Liaw, Yock Fang, 1936-, author
Times Books International, 1993
Buku Teks
Williams, Carolyn L., author
American Psychological Association , 2011
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Wallis, W.D., author
Springer, 2012
eBooks
Stapleton, Gerald F., author
Tab Books, 1971
Buku Referensi
Parr, E.A., author
Newness Technical Books, 1982
Buku Teks