Judul asli : "Fitness Walking"
No Inv.: 132180/SM/Perp/12/1c~135651/SM/Perp/13/1c~140661/SM/Perp/14/1c
No Inv.: 2665/P/Perp/98/1c
Bibliografi : hlm. 110
Bibliografi : hlm. 92 No. Inv. : 149203-149204/P/Perp/15/2c
No Inv.: 3565/Pb/Perp/91/1c
No Inv.: 194/AF/Perp/94/1c
Judul asli : "Rejuvenation Strategy"
No Inv.: 213-215/P/Perp/95/3c
No Inv.: 66/S/Perp/95/1c