@thesis{thesis,
		author={},
		title ={Pengaruh Model Pembelajaran Numbered Heads Together (NHT)  dan Model Direct Instruaction (DI) Terhadap Hasil Belajar Matematika Siswa SMK Swasta PAB 03 Medan Estate T.P. 2017/2018},
		year={2020},
		url={},
		abstract={_}
		}