Items where Author is "HUTAGALUNG, ANDRIADI"
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HUTAGALUNG, ANDRIADI (2019) PENGARUH PEMBERIAN PENGUATAN DAN VARIASI MENGAJAR TERHADAP MOTIVASI BELAJAR SISWA KELAS IX SMP NEGERI 8 MEDAN T.A. 2017/2018. Undergraduate thesis, UNIMED.