Kayumova Munavvar Sanokulovna, and Shomamatov Bahriddin Bahodirovich. “PROBLEMS OF OLD-FASHIONED IDIOMS AND PHRASES FOR NON-NATIVE SPEAKERS IN MODERN ENGLISH”. International Engineering Journal For Research & Development, vol. 5, no. 1, Jan. 2020, p. 6, doi:10.17605/OSF.IO/DQTPB.