Mu’jizatin Fadiana, Siti M Amin, and Agung Lukito. “PROFIL GENERALISASI SISWA OPERASIONAL KONKRET BERDASARKAN PERSPEKTIF SEMIOTIK”. Prosiding SNasPPM 3, no. 1 (September 29, 2018): 122–128. Accessed November 25, 2024. http://prosiding.unirow.ac.id/index.php/SNasPPM/article/view/227.