Author’s contributions
Kemaykin, V.M – constructed the idea of manuscript; planned the methodology of the project; organized and supervised the course of the project; wrote the manuscript.
Vildanova, R. F- constructed the idea of manuscript; planned the methodology of the project; organized and supervised the course of the project; wrote the manuscript.
Saparbay J.Zh. - wrote the manuscript; edited the manuscript.
Karabekov A. B. - data collection; data interpretation and analysis; wrote the manuscript.
Burkitbayev Zh. K- organized and supervised the course of the project; wrote the manuscript.