Badawi، M. F. A. (2018). The Effect of Massed and Spaced Instruction on EFL College Majors’ Acquisition and Retention of English Collocations. دراسات تربوية واجتماعية، مج24, ع1 ، 1 - 38. مسترجع من http://search.mandumah.com/Record/1120329
Badawi، Mohamed Farrag Ahmed. "The Effect of Massed and Spaced Instruction On EFL College Majors’ Acquisition and Retention of English Collocations." دراسات تربوية واجتماعية مج24, ع1 (2018): 1 - 38. مسترجع من http://search.mandumah.com/Record/1120329