Siegel, Daniel M.
Cambridge University Press, 1991
Buku Teks
Monika Besti Yolanda, author
Universitas Indonesia, 2013
UI - Skripsi Membership
Nila Purnama Sari, author
Universitas Indonesia, 2013
UI - Skripsi Membership
Sovina Helyati, author
Universitas Indonesia, 2013
UI - Skripsi Membership
Zahn, Markus
John Wiley & Sons, 1979
Buku Teks