Bibliografi : hlm. 201
Bibliografi : halaman 271-277
Bibliografi : hlm. 519-623
Judul asli : "Sophie's world"
Bibliografi : hlm. 373-377
No Inv.: 6580-6589/P/Perp/97/10c~9478-9487/P/Perp/99/10c~6122-6128/P/Perp/99/7c~66882-6884/S/00/3c
Bibliografi : hlm. 268-269
Judul asli : "The Gene" Bibliografi : hlm. 692-695