[FONT=Times New Roman][SIZE=5]presntation for GSM course
http://www.almohandes.org/vb/attachment.php?attachmentid=7018&d=1317255351
رابط بديل: http://www.almohandes.org/upload2/files/get/K_qPkSE3X5/oma000001-gsm-fundamentals-issue32.rar
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