No Inv.: 110972-110977/P/Perp/07/5c~118450-118452/P/Perp/09/3c
No Inv.: 899/S/Perp/91/1c
No Inv.: 179/S/Perp/95/1c
No Inv.: 77352/01/1c
No Inv.: 83518-83521/P/Perp/FIP/02/5c~110318/S/Perp/07/1c
No Inv.: 4615-4622/Perp/86/8c~1092/S/Perp/87/1c~1297/S/Perp/88/1c~700/S/Perp/90/1c
No Inv.: 964/S/Perp/90/1c~391/S/Perp/91/1c~715-716/S/Perp/92/2c
No Inv.: 11633/P/Perp/93/1c
Judul asli : "The Indonesian Vowels : Accoustic and Perceptual Explorations"