@book{121985,
	title = {On some time variations in the intensity of the nucleonic and the meson component of the cosmic radiation at Dacca city during 1968-1969 /},
	publisher = {University Of Dhaka, },
	year = {1969.},
	address = {Dhaka : },
	note = {Thesis (MS )-- Department of Physics, University of Dhaka,1969.}
}