@thesis{thesis,
		author={Budisetiawan  Irwan},
		title ={Pengaruh Reference Group, Motivation, Learning Serta Personality dan Self-Concept terhadap Pengambilan Keputusan Pemilihan Free-Email Service Provider di Surabaya },
		year={2000},
		url={http://repository.ubaya.ac.id/768/},
		abstract={}
		}