Annual Proceedings of Vidzeme University College ICTE in Regional Development, Valmiera, Latvia, ISBN 9984-633-13-6, 2008, pp.31-35
EBSCO
Annual Proceedings of Vidzeme University College ICTE in Regional Development, Valmiera, Latvia, ISBN 9984-633-13-6, 2008, pp.31-35
EBSCO