No Inv.: 512/PS2PT/Perp/95/1c
No Inv.: 712/P/Perp/98/1c
No Inv.: 112818/P/Perp/08/1c
https://link.springer.com/book/10.1007/978-3-642-37368-8
No Inv.: 118489-118491/P/Perp/09/3c
No. Inv. : 146062/S/Perp/15/1c
Bibliografi : hlm. 159
No Inv.: 14099-14102/P/Perp/94/5c~1148-1150/P/Perp/95/3c
No Inv.: 884-885/BD/Perp/86/2c
No Inv.: 47/S/Perp/95/1c