Botirova, Nodira, Sardor Qurbonov, and Sardor Umirqulov. “OPTIMAL CONCRETE COMPOSITION FOR ROADS: DEVELOPMENT IN EUROPEAN COUNTRIES”. Science and innovation in the education system 4, no. 2 (February 24, 2025): 105–109. Accessed August 2, 2026. https://econferences.ru/index.php/sies/article/view/24960.