PEC, Vol. 1, 2007	PEC, Vol. 2, 2007	PEC, Vol. 3, 2008
Contents	CONTENTS	CONTENTS
PEC, Vol. 4, 2008	PEC, Vol. 5, 2008	PEC, Vol. 6, 2008
CONTENTS	CONTENTS	CONTENTS
PEC, Vol. 7, 2008	PEC, Vol. 8, 2008	PEC, Vol. 9, 2008
CONTENTS	CONTENTS	CONTENTS
PEC, Vol. 10, 2009	PEC, Vol. 11, 2009	PEC, Vol. 12, 2009
CONTENTS	CONTENTS	CONTENTS
PEC, Vol. 13, 2009	PEC, Vol. 14, 2009	PEC, Vol. 15, 2009
CONTENTS	CONTENTS	CONTENTS
PEC, Vol. 16, 2009	PEC, Vol. 17, 2009	PEC, Vol. 18, 2009
CONTENTS	CONTENTS	CONTENTS
PEC, Vol. 19, 2010	PEC, Vol. 20, 2010	PEC, Vol. 21, 2010
CONTENTS	CONTENTS	CONTENTS
PEC, Vol. 22, 2010	PEC, Vol. 23, 2010
CONTENTS	CONTENTS

ISSN 1648-3898 © Scientific Methodical Center ”Scientia Educologica” /Lithuania/,
The associated member of Lithuanian Scientific Society and ICASE

19-07-2010