Fadilah, N. and Efendi, N. (2018) “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”, Indonesian Journal of Education Methods Development, 2, p. 10.21070/ijemd.v2i0.551. doi: 10.21070/ijemd.v2i0.551.