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Student Pleasure Attitude and Interest in Spending Time Learning Science Against Student Cognitive Learning Outcomes: Analisis Sikap Senang Siswa Dan Minat Meluangkan Waktu Belajar IPA Terhadap Hasil Belajar Kognitif Siswa. ijemd. 2018;2:10.21070/ijemd.v2i0.551. doi:10.21070/ijemd.v2i0.551