Mazurenko, Olga KostyantinіvnaМазуренко, Ольга КостянтинівнаМазуренко, Ольга Константиновна2017-06-072021-01-192017-06-072021-01-192015-05Mazurenko O. Problems of classification of consistency in the service sector / Olha Mazurenko // ABSTRACTS. Statistics of the XXI century: new challenges, new opportunities : IІI International Scientific Conference / Taras Shevchenko National University of Kyiv, Department of Statistics and Demography. – Kyiv, 2015. – Р. 22–23.https://ir.kneu.edu.ua:443/handle/2010/21699enArticle