edited by George M. Foster and Robert V. Kemper
Little, Brown, 1974
Buku Teks
Winter, C.F. (Carel Frederik)
Geofferey Cumberlege, 1948
Buku Teks
Fisher, Michael D.
Routledge, 1993
Buku Teks
Sofi Suwaris
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 1994
UI - Skripsi (Membership)
Leary, Peter
Oxford University Press, 2016
eBooks