1. Technical Drawing with Engineering Graphics-Fourteenth Edition, F. E. Giesecke, A. Mitchell, H. C. Spencer, I.L. Hill, J.T. Dygdon, J.E., Novak, Pearson., 2012, ISBN 0-13-272971-7

2. Introduction to AutoCAD 2011 – 2D and 3D Design, A.Yarmwood, Newnes Elsevier Inc., ISBN: 978-0-08-096575-8

3. Engineering Drawing and Graphic Technology-International Edition, Thomas E. French, Charles J. Vierck, Robert J. Foster, McGraw-Hill, Inc.1993 ISBN 0-07-022347-5

4. Engineering Drawing and Design-Sixth Edition, C. Jensen, J.D. Helsel, D.R. Short, McGraw-Hill, 2002, ISBN 0-07-821343-6 (T 353 J47 2002)

5. Mechanical Engineering Drawing-Self Taught, Jashua Rose, http://www. gutenberg.org/files/23319/23319-h/23319-h.htm