Pollard, Sidney, author
Harvard University Press, 1965
Buku Teks
Delianto Pratomo, author
2015
UI - Skripsi (Membership)
Fenbury, David M
Australian National University, 1978
Buku Teks
Murphy, Antoin E., author
Rajawali, 2011
Buku Teks
Heru Firdaus, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2007
UI - Skripsi (Membership)