Judul asli : Pocket mentor : time management
Bibliografi : hlm. 297-307
No Inv.: 84507-84511/S/Perp/02/5c
Judul asli :"Principle Modern Chemistry"
No Inv.: 4627-4635,4684-4703,4810/S/Perp/20c
Bibliografi : hlm. 49
No Inv.: 80581-80587/S/02/7c~104530-104534/P/Perp/06/5c
No Inv.: 74192-74204/S/00/13c