G.B. Esbergenova, and Z. M. Ganieva. “THE EFFECT OF THE MOTHER TONGUE IN THE DEVELOPMENT OF SPEECH IN THE GERMAN LANGUAGE”. Proceedings of International Conference on Educational Discoveries and Humanities, vol. 2, no. 6, June 2023, pp. 191-4, https://econferenceseries.com/index.php/icedh/article/view/2149.