No Inv.: 5399-5408/P/Perp/97/10c~109964/S/Perp/07/1c~136732-136736/P/Perp/14/5c
Bibliografi : hlm. 247-250
Bibliografi : hlm. 215-217 No Inv.: 146832,146833/P/Perp/15/2c
Bibliografi : hlm. 223-231
No Inv.: 3554-3558/P/Perp/92/5c
No Inv.: 179/S/Perp/95/1c
Judul asli : "The Indonesian Vowels : Accoustic and Perceptual Explorations"
No Inv.: 126/H/Perp/88/1c
No Inv.: 86318/S/Perp/03/1c
No Inv.: 89730/PSM/Perp/04/1c