@book{75445,
	author = {Joseph O.C. and Guided by Alex Thannippara and Mahatma Gandhi University Kottayam, Department of Statistics, St. Thomas College Palai},
	title = {Some problems in block designs and optimality criteria /},
	year = {March 2007},
	address = {Pala :},
	url = {https://shodhganga.inflibnet.ac.in/handle/10603/7128}
}