1. Granjean E. Ergonomics of VDUs: review of the present knowledge. In: Grandjean E, Vigliani E, editors. Ergonomics aspects of VDTs. London, UK: Taylor & Francis; 1980. p. 1–12.
2. Milby TH, Spear RC. Relationship between whole-body vibration and morbidity patterns among heavy equipment operators (NIOSH Publication No. 74–131). Cincinnati, OH, USA: National Institute for Occupational Safety and Health (NIOSH); 1974.
3. Rempel D, Honan M, Serina E, Tal R. Wrist postures while typing on a standard and split keyboard. In: Bittner AC, Champney P, editors. Advances in industrial ergonomics and safety, Vll. London,UK: Taylor & Francis; 1995. p. 619–22.
4. Czaja SJ, Sharita J. Ability performance relationship as a function of age and task experience for a data entry task. Miami, FL, USA: Miami Center on Human Factors and Aging Research; 2000.
5. Seva R. Fatigue effects in computer tasks. In: Lim KY, Herman L, Chui YP, Que RSM, Kong GSL, Tey FLK, editors.Proceeding of the 4th Asia Pacific Conference on Computer Human Interaction (APCHI 2000) and 6th S.E.Asian Ergonomics Society Conference (ASEAN Ergonomics 2000). Singapore: Elsevier; 2000. p. 159–64.