Sadewi, Aulia, DYP Sugiharto, and Eko Nusantoro. “Meningkatkan Self Efficacy Pelajaran Matematika Melalui Layanan Penguasaan Konten Teknik Modeling Simbolik”. Indonesian Journal of Guidance and Counseling: Theory and Application 1, no. 2 (December 1, 2012). Accessed April 27, 2024. https://journal.unnes.ac.id/sju/jbk/article/view/1606.