- Author: Oleg Beniukh Ksana Beniukh
- Language: English, Русский
- Year: 1991
- Author: Oleg & Ksana Beniukh
- Language: English, Русский
- Year: 1993
- Author: Elli Kohen Dahlia Kohen-Gordon
- Language: Ladino, English
- Year: 2000
- Author: Alla Markova
- Language: English, Ladino
- Year: 2008
- Author: Neset Eren
- Language: English
- Year: 1993
Mastering German
pdf
- Author: Antony J. Peck
- Language: English
- Year: 1991
- Author: Peter Deriabin T.H. Bagley
- Language: English
- Year: 1990
- Author: Nicholas Awde Muhammad Galaev
- Language: English, Chechen
- Year: 1997
- Author: Nicholas Awde
- Language: English, Serbo-Croatian
- Year: 1996
- Author: Branko Ostojic
- Language: English, Serbo-Croatian
- Year: 1989