Agustin, Y. T., Gunanto, Y. E., & Listiani, T. (2017). Hubungan Motivasi Belajar dan Disiplin Belajar Siswa Kelas IX Pada Pembelajaran Matematika di Suatu Sekolah Kristen [The Relationship between Learning Motivation and Learning Discipline of Grade 9 Mathematics Students at a Christian School]. JOHME: Journal of Holistic Mathematics Education, 1(1), 32–40. https://doi.org/10.19166/johme.v1i1.716