Singh,Nishant Anveshan aur Prodyogiki : tackneek ,upkaran evam janch agenciyan / Nishant Singh - 1st ed. - New Delhi: Mahendra Book Company, 2016. - 191 p. ; 20 cm. ISBN: 9789383180103 Subjects--Topical Terms: Criminal investigation--Technological Dewey Class. No.: 364.40284 / SIN/A