TY JOUR TI DEPENDENCE OF THE EFFICIENCY OF AGRICULTURAL BUSINESS ON EXTERNAL AND INTERNAL FACTORS (ON THE EXAMPLE OF THE REPUBLIC OF TATARSTAN) KW agricultural production KW gross output KW price disparity KW financial results KW factors KW efficiency JO Vestnik of Kazan State Agrarian University AU Gaynutdinov, I.G. AU Mukhametgaliev, F.N. AU Khismatullin, M.. AU Avhadiev, F.N. AU Aleksandrova, N.R. PY 2022 IS 17 PB Kazan state agrarian University