TY JOUR TI EFFICIENCY OF RESOURCE POTENTIAL USAGE: EVALUATION AND DIRECTIONS OF IMPROVEMENT KW agricultural organizations KW resource potential KW resource-abundance factors KW efficiency KW clusters KW regression modeling JO Vestnik of Kazan State Agrarian University AU Bogapova, M.R. AU Dozorova, T.A. PY 2018 IS 13 PB Kazan state agrarian University