Raphaelson, Elliot
John Wiley & Sons, 1982
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Janice Muljana
Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2022
UI - Skripsi (Membership)
Homans, George Caspar, 1910-1989
Routledge & Kegan Paul, 1959
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Klopf, Donald W
Morton Publishing Company, 1985
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Forsyth, Donelson R.
Wadsworth and Cengage Learning, 2014
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