@book{799,
	author = {National Instructional Media Institute (NIMI) and DGT, MSDE, Govt of India},
	title = {Computer Operator & Pragramming Assistant (COPA) 2nd  Semester : Trade Practical},
	publisher = {National Instructional Media Institute (NIMI)},
	year = {2016,c2014},
	address = {Chennai}
}