1. 1. Chua, C.K., Leong, K.F., “Rapid Prototyping: Principles and Applications in Manufacturing”, World Scientific (2000).
   2. “Fundamentals of Medical Implant Materials”, ASM Handbook, Materials for Medical Devices Volume 23.
   3. Gibson et al, The use of rapid prototyping to assist medical applications, Rapid Prototyping Journal, 12/1, 2006, pp. 53–58.
   4. Singare et al, “The Biotechnology and Genetics Race: Biomaterials versus Biological Materials in Orthopaedic Applications”, International Journal of Medical Biotechnology & Genetics, 2005. 
   5. Chua et al, “Rapid Prototyping Applications in Medicine”, The International Journal of Advanced Manufacturing Technology, 1999, P-18.
   6. Brandi Carr and Tarun Goswami, “Review of knee implants”, Journal of bone science, 2nd edition, 2009.
   7. P. Gu and L. Li, “Rapid Prototyping of medical devices using FDM”, Volume 13, 2004.
   8. Soumya Nag and Rajarshi Banerjee, University of North Texas, “Fundamentals of Medical Implant Materials”, ASM Handbook, Volume 23, 2012.
   9. John Charnley et al., “Ultra High MolecularWeight Polyethylene (UHMWPE) In Total Knee Replacement: Fabrication, Sterilization and Wear”, Journal of bone and joint surgery, 2002.
   10. Turell et al, “Tribological testing of artificial joint biomaterials using multidirectional pin on disc testers”, Journal of Mechanical behavior of biomedical materials (2013).