BOBOQULOVA DURDONA SANJAR QIZI. CYLINDRICAL AND CONICAL SURFACES: SECOND-ORDER SURFACES AND THEIR TYPES. O‘RTA OSIYODA IJTIMOIY VA GUMANITAR TADQIQOTLAR, [S. l.], v. 1, n. 3, p. 226–228, 2025. Disponível em: https://www.globalscholars.uz/index.php/oigt/article/view/1589. Acesso em: 5 apr. 2026.