KOLB'S EXPERIENTIAL LEARNING MODEL REFINED:?

KOLB'S EXPERIENTIAL LEARNING MODEL REFINED
TO ENHANCE ADULT LEARNING IN GROUPS

Need to add a colon:

REFINING KOLB'S EXPERIENTIAL LEARNING MODEL:
ENHANCING ADULT LEARNING IN GROUPS

REFINING KOLB'S EXPERIENTIAL LEARNING MODEL
TO ENHANCE ADULT LEARNING IN GROUPS

THIS is the title!

REFINING KOLB'S EXPERIENTIAL LEARNING MODEL

TO ENHANCE ADULT LEARNING IN GROUPS