kizi, Nomanjonova Dinora Boykuzi. 2022. “ON SOME PROBLEMS WITH A MIXED FOR A HYPERBOLIC TYPE EQUATION WITH TWO LINES OF EXPRESSION”. CENTRAL ASIAN JOURNAL OF MATHEMATICAL THEORY AND COMPUTER SCIENCES 3 (7):1-6. https://cajmtcs.casjournal.org/index.php/CAJMTCS/article/view/197.