Legio IX Hispana origins

[Konstantin Ankilov]

Looking for sources on 9th Legion origins. 

Modern publications are contradictory: 

• Keppie Lawrence in The Making of the Roman Army says it fought Social War in 90s B.C.
  
• Dando Collins says it was formed by Pompei the Great in 65 B.C.
  
• Н. М. D. Parker in his The Roman legions speculates that it might be formed along with Legio III Augusta in Africa(?!), making it 43 B.C.
  

All 3 books are more pop rather than scientific.

Would apprciate if anyone has leads on the original sources of information those authors used