Certificates have been given by United States Department of State, Bureau of Educational and Cultural Affairs; Community Connection Program, Detroit, Michigan, USA; Wayne State University, School of business administration
Certificates about taking trainings have been given by Language Center "Linguisticum"; by Project BIZPRO
Certificates have been given by International Academy for Science, Education and Technology Transfer, Bruchsal, Germany; by Public University of Lecture Skill, Poltava.
