Universitas Indonesia, 2002
UI - Skripsi (Membership)
Wolf, Paul R., author
Gadja Mada University Press, 1993
Buku Teks
Krista Ekaputri, author
2018
UI - Tesis (Membership)
Rampal, K.K.
Oxford & IBH, 1982
Buku Teks
Ghosh, Sanjib K., author
Ohio The Ohia State University, 1968
Buku Teks