Bibliografi : hlm. 151-158
Bibliografi : hlm. 239-241No Inv.: 140538/Psm/Perp/14/1c
No Inv.: 506/DSNT/Perp/88/1c
No Inv.: 123724/P/Perp/10/1c
Judul asli : "Steps to Success and Achievement"
No. Inv. : 146447-146448/P/Perp/15/2c
No. Inv. : 146201-146202/P/Perp/15/2c
No Inv.: 1906/S/Perp/91/1c