Gavrilov, V.V. “LEARNING OF RATS LIVING IN THE CONDITION OF SOCIAL ISOLATION OR OVERCROWDING TO INDIVIDUAL AND JOINT INSTRUMENTAL BEHAVIOUR”. Modern Psychology 2, no. 2 (4) (September 27, 2019): 94–98. Accessed May 15, 2024. https://journals.ysu.am/index.php/modern-psychology/article/view/Vol.2_No.2%284%29_2019_pp.094-098.