1- Lutz, R.J. (1991) Applied Sketching and Technical Drawing, Wilcox publishing, New York.
2- Ching, F. D. K., Juroszek, S. P. (1997). “Design Drawing”, John Wiley & Sons, New York.
3- Yee, R., (2007), Architectural Drawing, A Visual Compendium of Types and Methods, John Wiley&Sons, London.