George Y. Obeng
发表
Hans-Dieter Evers,
George Y. Obeng,
F. O. Akuffo,
2008
.
George Y. Obeng,
Ebenezer Mensah,
George Ashiagbor,
2017
.
George Y. Obeng,
2005
.
George Y. Obeng,
2013
.
Hans-Dieter Evers,
George Y. Obeng,
I. Braimah,
2008
.
Hans-Dieter Evers,
George Y. Obeng,
2010
.
George Y. Obeng,
Abeeku Brew-Hammond,
Francis Kemausuor,
2011
.
Hans-Dieter Evers,
George Y. Obeng,
G. Obeng,
2009
.