MANALU, EFFENDI. “PENERAPAN PENDEKATAN KONSTRUKTIVIS SOSIAL DALAM”. JURNAL HANDAYANI PGSD FIP UNIMED 2, no. 1 (December 10, 2014). Accessed July 13, 2025. https://jurnal.unimed.ac.id/2012/index.php/handayani/article/view/1733.