00512naa#a2200169#i#450# EN\INFRA-M\bibl\207 20241125021726.1 2587-9103 20130415b2013####ek#y0engy0150####ca RUS RU Communicative problems triggered by multiglossia: the case of Arabic in Upper Egypt Journal article Moscow INFRA-M Academic Publishing LLC. 2013 3 с. Journal article local Abdelgavad T. Makhmud zh-szf.ru