AZIMOVA, Hulkar. Tekislikda to‘g‘ri chiziq va uning tenglamalari. GREEN ECONOMY AND DEVELOPMENT, [S. l.], v. 3, n. 3, 2025. DOI: 10.5281/zenodo.15161666. Disponível em: https://www.green-eco.uz/index.php/GED/article/view/4769. Acesso em: 7 may. 2026.