Kepner, Charles Higgins, 1922-, author
Princeton Research Press, 1981
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Chang, Richard Y., author
PPM, 2003
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Boy Subirosa Sabarguna, author
UI-Press, 2006
Buku Referensi
Zara Ambadar, author
1989
UI - Skripsi (Membership)
Marimin
Grasindo, 2005
Buku Teks