Sayfullayev Ramziddin Fazliddinovich, Abdullayeva Mexriniso Ibragim qizi, Tojiyev Asadbek Nizomjon òģli, and Axtamov Daler Akmalovich. 2024. “HEART DEFECT”. Ta’lim Innovatsiyasi Va Integratsiyasi 22 (3):122-26. http://web-journal.ru/index.php/ilmiy/article/view/5670.