24/03/2020

Physical and mathematical sciences, 2020, №2

Full issue, 2020, №2 DOI 10.26739/2181-0656
24/03/2020

Pedagogical sciences, 2020, №4

Issue DOI http://dx.doi.org/10.26739/2181-9513 Full issue
17/03/2020

Journal of innovation in economics, 2020, №2

Full issue, 2020, №2 DOI 10.26739/2181-9491
12/03/2020

Journal of technical science, 2020, №1

Issue DOI http://dx.doi.org/10.26739/2181-9599-2020-1 Full issue