Ross, Harold, author
United Nations Research Institute for Social Development, 1972
Buku Teks
Endah Dewi Astuti, author
Fakultas Ilmu Komputer Universitas Indonesia, 2017
UI - Tesis (Membership)
Claudio A. Ardagna, editor
[, Springer-Verlag], 2012
eBooks
Becerra-Fernandez, Irma, author
Routledge, 2015
Buku Teks
Bwalya, Kelvin Joseph, editor
Chandos, 2014
eBooks