Larissa Bazarbayeva, Amina Sarsenbay, Makhabbat Khaval, and Meyirzhan Yerzhanov. 2026. “Peculiarities of Life Expectancy Across the Regions of Countries (Kazakhstan)”. European Research Materials, no. 13 (June). https://ojs.publisher.agency/index.php/ERM/article/view/8878.