Nuryati, N., and A. Rustiana. “PENGARUH CARA BELAJAR, DISIPLIN, DAN MOTIVASI TERHADAP KEAKTIFAN BELAJAR SISWA”. Economic Education Analysis Journal, Vol. 5, no. 2, Mar. 2017, p. 630, http://journal.unnes.ac.id/sju/eeaj/article/view/13666.