Kern, M. Kathleen
American Management Association, 2009
eBooks
Kovacs, Diane K.
Facet Publishing, 2007
Buku Referensi
Hani Kusumaningsih
Fakultas Ilmu Pengetahuan Budaya Universitas Indonesia, 2016
UI - Skripsi Membership
David R. Lankes ... [and others]
Facet Publishing, 2006
Buku Teks SO
Pace, Andrew K.
[American Library association, ], 2003
eBooks