Report - BAB I PENDAHULUAN 1.1 Latar Belakang Masalahrepository.upi.edu/15741/8/S_PKR_1006576_Chapter1.pdf2 X-AP 2 73,26 3 X-AP 3 72,46 4 X-AP 4 70,32 Sumber: Arsip Guru yang sudan diolah Nilai

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