Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2011
UI - Skripsi (Open)
Schwartz, Robert J., author
Crowell , 1955
Buku Referensi
Oxford University Press, 1996
Buku Referensi
Melfita Krisna, author
Universitas Indonesia, 2012
UI - Tesis (Open)
Dani Kusworo, author
2011
UI - Tesis (Open)