Gavrilov V. LEARNING OF RATS LIVING IN THE CONDITION OF SOCIAL ISOLATION OR OVERCROWDING TO INDIVIDUAL AND JOINT INSTRUMENTAL BEHAVIOUR. Mod. Psych. [Internet]. 2019 Sep. 27 [cited 2024 May 16];2(2 (4):94-8. Available from: https://journals.ysu.am/index.php/modern-psychology/article/view/Vol.2_No.2%284%29_2019_pp.094-098