Items where Author is "Ritonga, Nanna Lestari"
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Ritonga, Nanna Lestari (2013) PENERAPAN MODEL PBL (PROBLEM BASED LEARNING) PADA MATERI SISTEM PERSAMAAN LINIER DUA VARIABEL DI KELAS VIII SMP KARYA BUNDA MEDAN T.A 2012/2013. Undergraduate thesis, UNIMED.