Kerr, Alex
Hill and Wang, 2001
Buku Teks
A. Nahri Mansyur
1998
UI - Skripsi (Membership)
editor, Heide and Udo ernst Simonis
Otto Harrassowitz - Wiebaden , 1974
Buku Teks
Gregg, Pauline
George G. Harrap, 1952
Buku Teks
edited by Gianni Fodella
Bocconi University, 1975
Buku Teks