@book{355,
	author = {Aryal,Dinesh  and Timalsena, Dhruva Prasad },
	title = {सजिलाे सामाजिक अध्ययन तथा जीवनाेपयाेगी शिक्षा कक्षा ११},
	publisher = {Guinness Publication },
	year = {2081 BS},
	address = {Kathmandu },
	edition = {3rd ed. }
}