Yanti, Y., and M. Marimin. “PENGARUH MOTIVASI, LINGKUNGAN KELUARGA, DAN TEMAN SEBAYA TERHADAP KEDISIPLINAN SISWA”. Economic Education Analysis Journal, Vol. 6, no. 2, Aug. 2017, pp. 329-38, https://journal.unnes.ac.id/sju/eeaj/article/view/16422.