Aprianto, Widi. “Improving Mathematics Learning Outcomes on Area Material With Non-Standard Units through Concrete Object Media at MI Ma’arif NU Karangjoho Pengadegan Purbalingga”. ETNOPEDAGOGI: Jurnal Pendidikan dan Kebudayaan 1, no. 2 (April 30, 2024): 266–277. Accessed July 1, 2025. https://journal.mgedukasia.or.id/index.php/etnopedagogi/article/view/520.