Here is the link to the Dramatica book: http://www.dramatica.com/theory/theory_book/dtb.html

I also would like to add that I found it useful in my novel and I always recommend reading it when you have a lot of characters in your book and sometimes more than one main character.  I made up a table which illustrates clearly the relationships between the character in a novel, based on Dramatica.  Anyone interested can have it.

Hanna