Ghassan Hasbani

Oasis economies, the Middle Ea

Oasis economies, the Middle East in 2030

2014

Jumhūrīyah khārij al-kahf

Jumhūrīyah khārij al-kahf

2013

Make Winning Presentations

2005

Making Great Presentations (Essentials)

1999

Making Winning Presentations

1999

Winning Presentations

1996