Bibliografi : hlm. 685-687
No Inv.: 906-907/BD/Perp/86/2c
No Inv.: 131713/S/Perp/12/1c
No Inv.: 117055-117057/P/Perp/09/3c~124899-124903/P/Perp/10/5c
Judul asli : "Counseling : a Problem Solving ..."
No Inv.: 120033-120035/P/Perp/09/3c
No Inv.: 102136-102137/P/Perp/05/2c
Judul asli :"When faster-harder smaster"
No Inv.: 112827/P/Perp/08/1c
No Inv.: 129698/SM/Perp/11/1c