@s55
I did my PMP in 2005 (unofficially the highest scorer in Pakistan todate - more than 90% marks). You wont find Rita or PMBOK in Urdu Bazar. You can suggest your brother to get memebership of PMI. He will get a free copy of PMBOK on CD. For Rita, try to find some pakistani forum of prople preparing for PMP on yahoogroups. There are tons of Indian froums on yahoogroups. You may be able to find some Pakistani forum as well.
While you are searching for RITA course guide, please do also search for RITA CD (more fruitful).
I hope this will help. Otherwise feel free to contact me at naveedt9@hotmail.com.
Regards