Jeffery, Keith G., 1998.  An architecture  for grey literature  in a  R&D context.  A joint project involving University of Bergen,  University of Oslo (Norway) and CLRC-RAL (UK) has been initiated, following the Bergen Grey Literature ture System for research theses.  pp. 14-16
Khayatun dan Rahayu, Sri, 2011. Peran Perpusta- kaan IPB sebagai kontributor portal GARUDA (Garba  Rujukan Digital). JurnalPustakawan Indonesia  10 (2) hal. 11-17
Sulistyo-Basuki,  2001.   Local  Content:   peruba- han paradigma  di bidang informasi. Makalah Seminar/Lokakarya   Nasional   diselenggara- kan  oleh  Universitas Petra  Surabaya, 29-30 Agustus 2001
Open  Access Scholarly Information  Sourcebook. http://www.openoasis.org;http://www.webometrics.info
Kurtz, Michael J. (2004).  Restrictive access poli- cies cut readership  of electronic research. http://opcit.eprints.org/feb19oa/kurtz.pdf
Harnad, Stevan and Brody, Tim. (2004). Compar- ing the impact of Open Access (OA) vs. Non- OA articles in the same journals. D-Lib Maga- zine, June 2004, 10(6), 1082-9873. http:// www.dlib.org/dlib/june04/harnad/06harnad. html
Swan, Alma (2010) The Open Access citation advantage: Studies and  results to date.http:// eprints.ecs.soton.ac.uk/268516/
Brody, Tim, Harnad, Stevan and Carr, Les (2006).
Earlier Web Usage  Statistics as Predictors  of Later  Citation  Impact.Journal of the  Ameri- can Association for Information  Science  and Technology (JASIST), 57, (8), 1060-1072. http://eprints.soton.ac.uk/260713/
Harnad, Stevan.  (2008).  Confirmation  bias and the  open  access  advantage: some  method- ological  suggestions   for  the  Davis  citation study. http://eprints.soton.ac.uk/266600/1/ davisnew.html
SPARC (2008).  The Right to Research:  The stu- dent guide to opening access toresearch.http:// www.arl.org/sparc/bm~doc/rr2008_pages. pdf
Swan,  Alma and  Carr, Leslie (2008)  Institutions, their repositories and the Web. Serials Review,
34,  (1).  http://eprints.soton.ac.uk/264965/ Page | 5 *) Staf Perpustakaan Institut Teknolo- gi Bandung  (ITB), kovariansi@gmail.com
h t t p s : / / w w w . r e s e a r c h g a t e . n e t / publication/248387128_AKSES_TERBUKA_ TERHADAP_KONTEN_LOK AL_DAL AM_ PERPUSTAKAAN_DIGITAL