Benga, Cristina
Bucureşti
Editura Sophia
2009
9789731361307
Stanciu, Ion Gh.
Iaşi
Institutul European
2006
9789736114304
Eftimie, Simona
2014
9786062400804
Institute for Educational Sciences (ISE)
Narly, Constantin
Editura didactică şi pedagogică
1996
97335084
Petre, Cristian
2010
9789736116735