Located in Calpheon University, right side alcove on a stone pillar.

Go to the lady that resets knowledge. Look to HER right and see the "altar" between the bookshelves. There should be two books there; one that contains this knowledge as well as "How to Pep Up Your Soldiers".

Hah. Two books. No wonder i missed it

If you only get the "pep' shift a little to the left and try again.