1. 1.  A. S. Arya, and J. L. Ajmani, “design of steel structure.” Nim Chand and Bros, pp. 571-646, 2001.
   2.  IS 875 (Part 3) (2015), Code of practice for design loads (other than earthquake) for buildings and structures, BIS, New Delhi, India.
   3.  IS 875 (Part 3) (1987), Code of practice for design loads (other than earthquake) for buildings and structures, BIS, New Delhi, India.
   4.  IS 875 (Part 2) (1987), Code of practice for design loads (other than earthquake) for buildings and structures, BIS, New Delhi, India.
   5. IS 875 (Part 1) (1987), Code of practice for design loads (other than earthquake) for buildings and structures, BIS, New Delhi, India.
   6. SP: 38(S&T) (1987), Handbook for Typified Design for Structures with Steel Roof Trusses, BIS, New Delhi, India.
   7. S. K. Dubey, P. Sangamnerkar, and P. Soni, “Analysis of steel roof trusses under normal permeability condition”, Proceedings of National Conference on Advances in steel structures, Res.j. Engineering Sci., pp. 47-49, 2011.
   8.  A. Jayaraman, R. Geethamani, “Design and economical of roof truss and purlins.” International Journal of Engineering Research, vol. 10, no. 3, 2014.