Friedlander, Walter A.
prentice Hall of India, 1974
Buku Teks
Friedlander, Walter A.
Prentice-Hall, 1980
Buku Teks
Dobelstein, Andrew W.
Wadsworth, 2003
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Kirst-Ashman, Karen Kay
Cengage Learning , 2017
Buku Teks
Kirst, Ashman Karen Kay
Cengage Learning, 2013
Buku Teks