Hi Sonia, this post is for you again
Well, I have to let you know that my implementation of this project was not perfect. However, I am happy to share my ideas where to get the info for it. For me personally the best source was this book. It is not cheap unfortunately. But may be you can cooperate with someone to buy it on ebay and sell to the next generation of students when you finish. I was lucky to find it in my local library.
Here I found some useful information about bricks layering. Web site looking awful, don’t pay attention. You know what? If I was you there in Johannesburg I would make friends in University at Faculty of Art, Design and Architecture. I am perfectly sure they have all the info you looking for in their library. Or may be you can access the library without making friends The thing is I did not find a satisfying source in Internet, in this case books made better sense for me. Please take it as my personal experience only, check reading list in our student book again, ask other students and make your own way, remember I am just a student here. Good luck!