Khan, Sehrish Productivity Analysis of Tunnel Boring Machines (TBMS): A case study of neelum Jhelum Hydroelectric Projedt (NJHEP) / Sehrish Khan. - Islamabad: NIT NUST, 2016. - 54 p. : ill. ; 30cm. ISBN: Subjects--Topical Terms: Construction Engineering and Management MS-Thesis. Dewey Class. No.: 624.1