Book on Islamic Banking

As-salamu alaykum wa rahmatullah.

I am a medical student and soon going to start internship, insha-Allah. At this time, we will start getting salary and will therefore go to banks. I would like to convince my friends about the need to go to Islamic banks and nowhere else.

So, is there a good book that can give me enough information that I can present to my friends? I know that there is a person called AZM Shamsul Islam (or Alam) who writes about Islamic financial system. Is there any of his books on AmarBoi?

Admin / Users, please help. It's urgent because we'll start internship this November, insha-Allah.

Ma'as salam.