L. M. Kalinina, O. M. Topuzov, and V. V. Lapinskyi, “FACTOR MODEL FOR ESTIMATING EFFICIENCY OF GENERAL SECONDARY SCHOOL MANAGING AND ITS PRACTICAL APPLICATION”, ITLT, vol. 80, no. 6, pp. 346–368, Dec. 2020, doi: 10.33407/itlt.v80i6.3912.