Hastuti, F. 2016. PENGARUH DISIPLIN BELAJAR TERHADAP KESULITAN BELAJAR EKONOMI SISWA KELAS X SEKOLAH BERASRAMA DI KOTA PADANG PANJANG. Jurnal Educative: Journal of Educational Studies. 1, 2 (Dec. 2016), 168–177. DOI:https://doi.org/10.30983/educative.v1i2.162.