Vol-2587⫷ Vol-2588 ⫸Vol-2589
urn:nbn:de:0074-2588-0


Vol-2588/paper23⫷Vol-2588/paper24⫸Vol-2588/paper25
Solomiia FedushkoYuriy SyerovOleksandra TesakOksana OnyshchukNataliia Melnykova

Advisory and Accounting Tool for Safe and Economically Optimal Choice of Online Self-Education Services