1. doctoral student, Zhetysu University named after I. Zhansugurov,Taldykorgan, Kazakhstan
2. c.p.s., lecturer, Zhetysu University named after I.Zhansugurov, Taldykorgan, Kazakhstan
3. d.p.s, professor, Zhetysu University named after I.Zhansugurov,Taldykorgan, Kazakhstan