MAMADALIYEVA SURAYYO ODILJON QIZI. KOMBINATORIKA MASALALARI. Ustozlar uchun, [S. l.], v. 74, n. 1, p. 38–40, 2025. Disponível em: https://scientific-jl.com/uuc/article/view/20935. Acesso em: 24 jun. 2025.