Just thought I'd share a link to a store that has all the law books for studying on the LLB at University of London International. The prices are affordable:
Wildy & Sons Ltd. (Materials are arranged by subject which is especially helpful). Based in UK. Some can be found on Amazon, too.
http://www.wildy.com/llb-university-of-london-international-programmes
The UoL LLB Booklist:
http://www.londoninternational.ac.uk/sites/default/files/documents/laws_booklist_2014-15.pdf
updated for 2015-16: http://www.londoninternational.ac.uk/sites/default/files/documents/laws_booklist_2015-16.pdf
From what I understand, the University of London International Programme does include primary texts in the box of materials they send out. However, there are several additional texts that are supplemental and recommended. It is also suggested that laws students read law journals and reports as well. They also recommend to start studying and reading as soon as you know you are going to register; the earlier the better. So while you may not be officially enrolled, you should definitely get started because from what I've heard and read, this programme is very rigorous and exams are challenging. It is for this reason that I've decided to begin reading, obtaining the supplemental texts now BEFORE I apply and register.
Update 12-28-2015: Books are no longer included in materials from the university, except statute books.
Is there anyone else out there studying for the program, prior to registering? If so, let me know. I'd like to hear from you! I'm sure others would appreciate your input as well. So, feel free to post a comment below.