@thesis{thesis,
		author={AHMAD ARIEFUDIN },
		title ={UPAYA PENCEGAHAN PENCEMARAN LINGKUNGAN ATAS BEROPERASINYA BUS TRANS JOGJA DI YOGYAKARTA},
		year={2009},
		url={https://etd.umy.ac.id/id/eprint/10010/},
		abstract={}
		}