Boyko L.A., Boyko A.P. Reform of the educational system in Finland as a tool for building innovation economy // Creative Economy. — 2018. — Vol. 12. — № 1. — p. 115-124. — doi: 10.18334/ce.12.1.38776
Akhmetshin A.A., Ibatullin U.G. Integrated indicator for a quantitative efficiency assessment of productive activity in the organization of additional professional education // Leadership and Management. — 2016. — Vol. 3. — № 4. — p. 277-289. — doi: 10.18334/lim.3.4.37193