Bibliografi : hlm. 249-250 No Inv.: 134833/SM/Perp/13/1c~135582/SM/Perp/13/1c~135544/SM/Perp/13/1c
No Inv.: 119899-119901/P/Perp/09/3c
Bibliografi : hlm. 145 No Inv.: 6211/P/Perp/92/1c
No Inv.: 4558-4561/P/Perp/97/4c~108446/S/Perp/1c~123151-123155/P/Perp/10/5c
No Inv.: 113392/P/Prp/08/1c~113394/P/Perp/08/1c
Judul asli : "The Action Centred Leader"
No Inv.: 227/S/Perp/89/1c~2607/S/Perp/1c
No Inv.: 2281-2285/P/Perp/95/5c
Judul asli : "Fitness Walking"
No Inv.: 113362-113366/P/Perp/08/5c