Nichkasova Yuliya, и Bila Svіtlana. «THE ONTOLOGY OF FINANCIAL MARKETS, FUNCTIONS AND STRUCTURE EVOLUTION: THEORETICAL AND METHODOLOGICAL ASPECT». «Вестник НАН РК», вып. 1, февраль 2019 г., сс. 236-48, http://189185.vm7pq.group/bulletin-science/article/view/1639.