Steynen, P.A.W.
Nijmegen Janssen 1953
Buku Teks
Umar Junus, author
Kuala Lumpur Dewan Bahasa dan Pustaka 1989
Buku Teks
Schneider, Wilhelm, author
Herder, 1959
Buku Teks
Spitzer, Leo, author
Max Hueber, 1961
Buku Teks
Purba, Antilan, author
USU Press, 2009
Buku Teks