أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
I agree with experts answers, thanks for the invitation. ....
You may open any of these two links at your browser;
http://nb.wsd.wednet.edu/big6/big6_resources.htm
http://www.bbc.co.uk/learning/
Hope above links can help.
I would highly recommend the following boks to study:
New nsights Into Business
Market Leader
In Company
full agree with ms. ghada .
I leave the answer to the experts, specialists in this field.
Thanks for the invite and leave the answer for the professionals
Thank you for the invitation and I agree with Dr. Ghada
Thanks for the invite,
But really I do not know any resources or references relating to the question! The issue is out of my focus.