Siti Qomariah, & Luluk Iffatur Rocmah. (2025). Abacus Games Foster Concentration and Socioemotional Skills in Early Childhood: Permainan Abacus Membantu Mengembangkan Konsentrasi dan Keterampilan Sosial-Emosional pada Anak Usia Dini. Academia Open, 10(1), 10.21070/acopen.10.2025.12305. https://doi.org/10.21070/acopen.10.2025.12305