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ralph lauren polo


First Author:
 
Abdelbari El khamlichi
ENCG, LERSEM, Chouaib Doukkali University, Morocco
abdelbari.el.khamlichi@gmail.com
 
 
 
 

Second Author:

Selim baha Yildiz
Celal Bayar University, Turkey
baha.yildiz@cbu.edu.tr