Kurniyawan, Deni, SMP Negeri 2 Magelang, Indonesia
Kusuma, Lukman W, Universitas Lambung Mangkurat, Indonesia
Kusuma, M, Science Education Department University of Pancasakti Tegal, Indonesia
Kusuma, Mobinta, Science Education Program, Faculty of Teaching Training and Education Pancasakti University Tegal, Indonesia
Kusumaningrum, Novia Widianti, Postgraduate University of Negeri Surabaya, Indonesia

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