Gaya APA
Vazirani, V., Ratwani, M.
(1984).
Steel Structures
(
Ed.9)
.
New Delhi:
Khanna Publishers.
Gaya MLA
Vazirani, V.N.., Ratwani, M.M..
"Steel Structures".
Ed.9
New Delhi:
Khanna Publishers,
1984.
Buku TP.