Kusuma, Yuda, and Muhsin Muhsin. “PENGARUH MOTIVASI BELAJAR, LINGKUNGAN TEMAN SEBAYA, DAN BAHAN AJAR TERHADAP KESIAPAN BELAJAR”. Economic Education Analysis Journal 5, no. 2 (March 22, 2017): 575. Accessed December 23, 2024. https://journal.unnes.ac.id/sju/eeaj/article/view/13662.