Безруков, Леонид, and Елена Власова. “ WHOSE PARENTS HAVE CONSTANTLY LIVED UNDER CONDITIONS OF DIFFERENT ENVIRONMENTAL FACTORS AND FACTORS”. SWorldJournal 2, no. 04-02 (June 30, 2020): 48–54. Accessed May 5, 2024. https://www.sworldjournal.com/index.php/swj/article/view/swj04-02-063.