Arndt, P. P.
Batavia: Universitiet of Indonesia,
Buku Teks
Sapir, Edward
Munchen Heuber 1961
Buku Teks
Sapir, Edward
Munchen Heuber 1961
Buku Teks
Dilthey, Wilhelm
The UNiversity of North Carolina Press, 1954
Buku Teks
Kelsen, Hans, author
Verlag von J.C. Mohr, 1929
Buku Teks