Bibliografi : lembar 958-967
No. Inv. : 150471-150472/P/Perp/15/2c
No Inv.: 126219/P/perp/10/1c
Judul asli : Elementary and middle school mathematics ~ Bibliografi : hlm. D-1 - D-10
No Inv.: 2607-2616/P/Perp/97/97/10c
Bibliografi : hlm. 657-658
No. Inv. : 146098-146099/P/Perp/15/2c