@thesis{thesis,
		author={Hindiarto  Bayu},
		title ={Motivation to learn English and its relationship with achievement : a case study among the second year students of SMU Pangudi Luhur Sedayu Bantul Yogyakarta in the academic year 1997/1998},
		year={1999},
		url={http://repository.usd.ac.id/10533/},
		abstract={}
		}