William Dobbs Sprachen
wkspeak
PoetaZurdo
Buensoft
Damien Elmes
P. J. Heslin
ABAEnglish.com
conjuga.de
RWF Talking Software
NarDictionary.com
ABA English
Catalina Moreno Escobar
Discovery Educational Software
Coccinella Development, Inc.
Visual Pronunciation Software
PROMT
Custom Solutions of Maryland
Lingoversity.com
Eugene Troitskiy
