Akhgar, Babak
Morgan Kaufmann, 2014
eBooks
Bwalya, Kelvin Joseph
Chandos, 2014
eBooks
Sanjay Kataria; B.S. Nigam; Rama Kant Shukla, editor
KBD Publications, 2009
Buku Teks
Yang Razali Kassim
S. Rajaratnam School of International Studies, Nanyang Technological University, 2009
Buku Teks
edited by Katherine Blashki, Pedro Isaias
Information Science Reference, 2014
Buku Teks SO