@book{10917,
	author = { Patra, Nihar Ranjan.},
	title = {Advance Geotechnological Engineering (Pdf Lecture 8)},
	publisher = {Indian Institute of Technology , Kanpur.},
	address = {IIT Kanpur.},
	url = {http://nptel.ac.in/courses/105104132/Module2/lecture8.pdf}
}