Judul Asli: Why Procrastinate? A Teenager's Guide to Overcoming Procrastination
Judul Asli: The Complete Book of Inteligence Tests: 500 Exercises Improve, Upgrade, And Enbance your Mind Strength
Bibl.hlm. 109-110 Indeks hlm.107-108
Indeks: 173 - 179 hlm