@book{89391,
	author = {Hadi, Sutrisno.},
	title = {Statistik psychologi dan pendidikan /},
	publisher = {Jajasan Penerbitan F.I.P.-I.K.I.P. Jogjakarta,},
	year = {1968.},
	address = {Jogjakarta :},
	edition = {Tjet. 7, dgn revisi.}
}