White, Jonathan Randall, author
Wardsworth, 2004
Buku Teks
Anta Maulana Nasution, author
Indonesia Defense University, 2018
Artikel Jurnal
editors, David A. Elizondo, Agusti Solanas, Antoni Martınez-Balleste
Springer, 2012
eBooks
Andrew Millie, Dilip K. Das, editor
CRC Press, Taylor & Francis Group, 2008
Buku Teks
Berg, Bruce L. (Bruce Lawrence), 1954-, author
Allyn and Bacon, 1992
Buku Teks