Bondar, I.,I.,BondarYelizarov, I.,I.,YelizarovAkchurina, A.A.AkchurinaMel’nikova, I.I.Mel’nikova2014-02-082014-02-082013-12-12http://ir.nmu.org.ua/handle/123456789/3443en"MYSTERY SHOPPING" TECHNOLOGYArticle