00606naa#a2200193#i#450# EN\\bibl\2366 20241126174557.2 2308-4057 20140527b2014####ek#y0engy0150####ca ENG RU The Main Labor-Forming Factors and the Assessment of Labor Efficiency in Agriculture (By the Example of Kemerovo Oblast) Journal article Kemerovo Kemerovo State University 2014 6 с. Journal article local Zhidkova Elena A. Zotov Viktor Dvorovenko Aleksandra jsocnet.ru