УМАРОВ, Хамидилло. The efficiency of communication tasks to improve students’ speaking skills at customs institute. Лингвоспектр, [S. l.], v. 1, n. 1, p. 74–75, 2024. Disponível em: https://lingvospektr.uz/index.php/lngsp/article/view/23. Acesso em: 3 дек. 2025.