1
by Wheelock, Frederic M.
Published 1963
2
by Lange, Eva C.
Published 1962
3
by Mustafa Zubair
Published 2004
4
by Gilbert, Lesley
Published 1994
5
by Wilson, N. Scarlyn
Published 1958
6
by Rajamanikam, K.
Published 2010
7
by Meese, Herrad
Published 1966
8
by Lohfert, Walter
Published 1993
9
by Nunan, David
Published 1995
10
by Nunan, David
Published 1995
11
by Nunan, David
Published 1995
12
by Meese, Herrad
Published 1966
13
by Hoerschelmann, Fred von
Published 1982
14
Published 1990
15
16
by Przybyla, J?org
Published 1993
17
by Meese, Herrad
Published 2005
18
by Eismann, Volker
Published 2004
19
by Jacobs, Eberhard
Published 1982
20
by Nandy, Milon
Published 1997