Roorda, T., author
E.J. Brill, 1895
Buku Klasik
Maks, R.
Wolters-Noordhoff, 1987
Buku Teks
Eijk, Inez van
Contact, 1997
Buku Teks
Teeuw, A. (Andries), 1921-, author
Bandung: VanHoeve, 1956
Buku Teks
Reitsma, J., author
Ruygrok, [date of publication not identified]
Buku Teks