Bibliogarfi : hlm. 239-248
Bibliografi : hlm. 267 - 274
No Inv.: 109867/S/Perp/07/1c
Judul asli : "Appraising Your Staff"
Bibliografi : hlm. 282
Bibliografi : hlm. 175-180No Inv.: 146758/P/Perp/15/1c
Bibliografi : hlm. 227
No Inv.: 132161/SM/Perp/12/1c