TY JOUR TI EVALUATION THE LABOR PRODUCTIVITY LEVEL IN AGRICULTURAL ENTERPRISES OF ULYANOVSK REGION KW labor productivity KW assessment KW methods KW indicators KW dynamics KW agriculture. JO Vestnik of Kazan State Agrarian University AU Smirnova, E.A. AU Postnova, M.V. AU Tarasova, E.A. PY 2018 IS 13 PB Kazan state agrarian University