Lettering
Books
P. S. Gill, Engineering Drawing. Seagull Books Pvt Ltd, 2009.
Bhatt, N.D. Elementary Engineering Drawing Charoter Publishing, Anand, Thirtieth Edition, 1990
Fundamentals of Engineering Drawing, W.J. Luzadder, J. Warren and J.M. Duff, Prentice Hall International Editions