Overeem, M. van, author
Utrecht, 1953
Buku Teks
Speerstra, W., author
Batavia, J.B. Wolters
Buku Teks
Tammes, A.J.P., author
Martinus Nijhoff, 1951
Buku Teks
Durkheim, Emile, author
Press Universitaires De France, 1967
Buku Teks
Laeyendecker, L.
Gramedia, 1983
Buku Teks