L. Soliev Tajik State Pedagogical University, Dushanbe Tajikistan
M. T. Jumaev Tajik State Pedagogical University, Dushanbe Tajikistan
A. M. Varkaeva Tajik State Pedagogical University, Dushanbe Tajikistan
Kh. R. Makhmadov Tajik State Pedagogical University, Dushanbe Tajikistan
G. Sinoi Tajik State Pedagogical University, Dushanbe Tajikistan
© Chimica Techno Acta, 2014-2020ISSN 2411-1414 (Online), ISSN 2409-5613 (Print)