Verster, Joris C., editor
Springer, 2012
eBooks
edited by Kusumanto Setyonegoro [and others]
Yayasan Dharma Graha, 1977
Buku Teks
Boris Gutkin, editor
[, Springer], 2012
eBooks
Rasmussen, Sandra, author
Sage, 2000
Buku Teks
O`Brien, Robert, editor
Facts On File, 1984
Buku Referensi