SURYANINGRUM, Christine Wulandari; MISYANA, Misyana; JATMIKOWATI, Tri Endang. Playing Mathematics in Early Childhood Based on Semiotics. Jurnal Obsesi : Jurnal Pendidikan Anak Usia Dini, [S. l.], v. 6, n. 2, p. 601–610, 2021. DOI: 10.31004/obsesi.v6i2.1341. Disponível em: https://mail.obsesi.or.id/index.php/obsesi/article/view/1341. Acesso em: 30 sep. 2026.