Agustin, Y. T.; Gunanto, Y. E.; Listiani, T. 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 2017, 1, 32-40.