National, cultural and language specificities of Arab official speech styleLolita Arkadyevna Balandina, Elena Viktorovna Ganina, Aleksandra Andreevna Lukina, Veronika Eduardovna Matveenko and Tatyana Vasilyevna SatinaSHS Web Conf., 127 (2021) 02020DOI: https://doi.org/10.1051/shsconf/202112702020