Pengarang: N. K. Tewari

Mr. Pradeep Chaturvedi is a Member of the Mechanical Engineering Board of The Institution of Engineers (India). Prof. N.K. Tewari is a Senior Faculty Member in the Mechanical Engineering Department at the Indian Institute of Technology, Delhi. Prof. P.V. Rao is a Senior Faculty Member in the Mechanical Engineering Department at the Indian Institute of Technology, Delhi. Prof. G.S. Yadav is the Senior Faculty Member at ITTMEC at the Indian Institute of Technology Delhi.