Ramamrutham S, Narayanan R, . (1987). Elements of Reinforced Concrete. Delhi: DHANPAT RAI & SONS.
Ramamrutham S, Narayanan R, . 1987. Elements of Reinforced Concrete. Delhi: DHANPAT RAI & SONS.
Ramamrutham S, Narayanan R, . Elements of Reinforced Concrete. Delhi: DHANPAT RAI & SONS. 1987.