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Hajerina Hajerina
Department of Science Education, Universitas Tadulako
Department of Mathematics Education, Universitas Alkhairaat
Indonesia
Mery Napitupulu
Department of Chemical Education, Universitas Tadulako
Indonesia
Rita Lefrida
Department of Mathematics Education, Universitas Tadulako
Indonesia
Richard Albert Walanda
Department of Computer Science, University of Newcastle
Australia
