Report - umsurabayarepository.um-surabaya.ac.id/29/1/PENDAHULUAN.pdfTabel 4.2 Instrumen Masalah Trigonometri Sebelum dan Sesudah Divalidasi 38 Tabel 4.3 Subjek Penelitian 41 Tabel 4.4 Perbandingan

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