Гончарук, Степан Тихонович, and Ірина Володимирівна Олійник. 2017. “Professional Training of State Employees - an Important Element of Civil Service”. Scientific Works of National Aviation University. Series: Law Journal "Air and Space Law" 1 (42):57-63. https://doi.org/10.18372/2307-9061.42.11511.