Mayer, Thomas, author
Random House, 1968
Buku Teks
Curtis, Sarah, author
Edward Arnold, 1996
Buku Teks
Prager, Jonas
Random House , 1971
Buku Teks
Imam Prakoso, author
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UI - Tesis (Membership)
Muhammad Daffa Ihsan, author
Fakultas Ekonomi Dan Bisnis Universitas Indonesia, 2022
UI - Skripsi (Membership)