Gaya APA
      S.Pd, P, K, S. ().
    Improving Students` Engagement Through Project Based Learning (LAPBOOK) For Seventh Grade Students Of Al Azhar 26 Islamic Junior High School Yogyakarta In Academic Year 2018/2019 .
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Gaya MLA
      S.Pd, Pitra, Kurnia, Sari,.
    "Improving Students` Engagement Through Project Based Learning (LAPBOOK) For Seventh Grade Students Of Al Azhar 26 Islamic Junior High School Yogyakarta In Academic Year 2018/2019".
    
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  Buku.