Bibliografi : hlm. 202; No Inv.: 137855-137859/P/Perp/14/5c
No Inv.: 14078-14081/P/Perp/94/4c
No Inv.: 12415-12419/P/Perp/94/5c
No Inv.: 14272/P/Perp/94/1c~87072-87073/P/Perp/03/2c
Judul asli : "Using Symphony"
No Inv.: 203/Pb/Perp/92/1c~13609/P/Perp/94/1c
No Inv.: 13585/P/Perp/94/1c
No Inv.: 100810/P/Perp/05/1c
No Inv.: 101272/P/Perp/05/1c