00627naa#a2200193#i#450# EN\\bibl\2836 20241112172611.2 2308-8877 20140616b2014####ek#y0engy0150####ca RUS RU Solving systems of linear equations using ms excel spreadsheet Journal article Voronezh FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov 2014 4 с. Journal article local Luzhaev L. Toymurudov Sh. Khayrullaev A. naukaru.ru