Bibliografi : hlm. 259-266
Judul asli : "The enzyme factor"
Judul asli ; "Water for health"
Bibliografi : hlm. 175
Bibliografi : hlm.235-236
No Inv.: 2785-2789/P/Perp/92/5c~8697-8700/P/Perp/92/4c~111/S/Perp/90/1c~75383,75386,75387/01/3C~76579/S/01/1c
No Inv.: 926-945/P/Perp/97/20c
No Inv.: 1631-1635/P/Perp/95/5c