Szekely, Ladislao, author
Oxford University Press, 1984
Buku Teks
Pelzer, Karl J., author
Martinus Nijhoff, 1978
Buku Teks
Pelzer, Karl J., author
Pustaka Sinar Harapan, 1985
Buku Klasik
Neimark, Edith D., author
Harcourt Brace Javanovich, 1987
Buku Teks
Whitehead, Alfred North, 1861-1947, author
The New American Library, 1933
Buku Teks