No Inv.: 12225-12229/P/Perp/94/5c
Bibliografi : hlm. 271-282
No Inv.: 143442-143446/P/Perp/14/5c
No Inv.: 2344-2347/P/Perp/98/4c
No Inv.: 74635-74639/P/01/5c
Judul asli : "How it Work Series : Computer"
Judul asli: "How it Work Series : Space Shuttles"
Judul asli : "How it Work series : Television and Video"
Judul asli :"How it work series : battle Tank"