Cole, Rodney, author
Saunders College, 1993
Buku Teks
Stone, Michael, author
Cambridge University Press, 2010
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Kartini Fahmi Idris, author
1980
UI - Skripsi (Membership)
Muhammad Aulia Rahman Boer, author
Fakultas Psikologi Universitas Indonesia, 2021
UI - Skripsi (Membership)
Zeidner, Moshe
Kluwer Academic, 1998
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