بحث درباره نظام پيشنهادها؛ با رويكرد ارتقاء اثربخشي http://akbareftekhari.ir/fa/myactivities/research-activities/8-suggestions Sat, 11 Apr 2026 02:41:21 +0330 JComments http://akbareftekhari.ir/fa/myactivities/research-activities/8-suggestions#comment-1 اکبر افتخاری Wed, 14 Jul 2010 14:03:22 +0430 http://akbareftekhari.ir/fa/myactivities/research-activities/8-suggestions#comment-1