Radjagukguk, Erman, author
Program Pascasarjana Universitas Indonesia, 2004
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Astri Widita Kusumowidagdo, author
Universitas Indonesia, 2012
UI - Skripsi (Open)
edited by Toshiko Takenaka
Edward Elgar, 2013
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Hutagalung, Sophar Maru, author
Sinar Grafika, 2013
Buku Teks
Universitas Indonesia, 2014
UI - Skripsi (Membership)