” Buried Steel Penstocks “
Buried Steel penstocks Second Edition By American Iron and Steel Institute.
Everything Related to Civil Engineering.
Buried Steel penstocks Second Edition By American Iron and Steel Institute.
Welded Design Theory & Practise By John Hicks Free For Members
Stiffener Design for Beam-to-Column Connections By Michelle L. Holland
AISI 2007 ( North American Specification for the Design of Cold-Formed Steel Structural Members)