Visnyk of Sumy State University. Economy seriesIssue #4, 2019
Vakulenko I., Kolosok S., Pryimenko S., Matvieieva Iu.
p. 56-61
Bolshunov V., Riabushka L., Bielova I.
p. 62-72
Kasianenko V., Antoniuk N., Myronova A., Lyulyov O.
p. 87-92
Bondarenko A., Moiseienko M., Gordienko V., Dutchenko O.
p. 93-100