Indeks: 169-172 hlm
Judul Asli: Why Simplify? A Teenager's Guide to Simple And Purposeful Life Indeks:
Judul Asli: Why Study Smart?
Judul Asli: Why Take Action
Judul Asli: The Complete Book of Inteligence Tests: 500 Exercises Improve, Upgrade, And Enbance your Mind Strength
Judul Asli: IQ And Aptitude Tests