If a bible writer / scribe refers to a particular book text or scripture by name , for one reason or another, shouldn`t that be a legitimate reason for including it in the bible cannon as a part of the bible ?
Not necessarily. Some books were simply history books available during that time period. I own the Book of Jasher, and it sheds some more light on the extent of wickedness in pre-flood times. Interesting, but I take it with a grain of salt. Interesting nonetheless.