Covey, Stephen R. The 3rd Alternative : Solving Life's Most Difficult Problems / Stephen R. Covey . - Edisi Bahasa Melayu - Selangor : PTS Publishing House Sdn Bhd , 2015 . - 668 pages ; 23 cm . ISBN: 9789674114091 Subjects--Topical Terms: Problem solvingInterpersonal conflictChange (Psychology) Dewey Class. No.: 158.1 COV 2015