ASSESSMENT OF THE РОТЕNTIАL FОR ТНЕ FORМАТІОN АND DЕVЕLОРМЕNТ ОF А СLUSТЕR OF CONSTRUCTION MATERIALS IN ASTANA Journal title: Journal of Economic Research & Business Administration Authors: N.S. Dosmaganbetov, S.M. Yegemberdiyeva, E. Kašťáková, B.N. Zhabytay Subject(s): Business Administration, Economics, Management Science/Operations Research, Finance and Financial Services, Marketing