1. 3D printing of biomaterials;Bandyopadhyay;MRS Bull,2015
2. Apparatus and method for creating three-dimensional objects;Crump;US Pat,1992
3. Royden C. Sanders, Jr. John L. ForsythKempton F. Philbrook.L. 3-D model maker. US Pat. 5,506,607; 1996: 1–22. Available from: https://patents.google.com/patent/US5506607A/en.
4. Hull C.W. Apparatus for production of three-dimensional objects by stereolithography, US Pat. 4,575,330; 1986: 1–16. Available from: http://www.google.com/patents/US4575330.
5. Method and apparatus for producing parts by selective sintering;Deckard;US Pat,1989