It's difficult to get definitive and fully accurate information,
as most reports are biased towards seeing him as a terrorist and
with such bias, accuracy is automatically somewhat suspect.
That being said, he's from a wealthy family. He went to
University. He certainly appears to have studied economics and
business administration and some encyclopedias have him listed
as having studied civil engineering.
That being said, without an "insider's biography" to compare
with and without proper evidence to back up these claims, it's
hard for us to know for sure.
It's hard enough to get school records in the USA. I imagine
it's just as hard elsewhere.