@book{10908,
	author = { Patra,Nihar Ranjan.},
	title = {Advance Geotechnological Engineering( Pdf Lecture Module 2)},
	publisher = {Indian Institute of Technology, Kanpur.},
	address = {IIT Kanpur.},
	url = {http://nptel.ac.in/courses/105104132/Module1/Lecture2.pdf}
}