00600naa#a2200193#i#450# EN\\bibl\4853 20250331034414.1 2073-0462 20141225b2014####ek#y0engy0150####ca RUS RU IMPROVING EFFICIENCY OF AGRICULTURE STAFFING IN THE REPUBLIC OF TATARSTAN, BASED ON CLUSTER APPROACH Journal article Kazan Kazan state agrarian University 2014 6 с. Journal article local Shagivaliev Lenar Fayzrakhmanov Dzhaudat Nezhmetdinova Farida naukaru.ru