Sari, A. M., A. M. Sari, and Widayanti. “Pengaruh Penggunaan Alat Permainan Edukatif (Ape) Bianglala Terhadap Kemampuan Mengenal Lambang Bilangan Pada Anak Kelompok A Di TK Mekar Sari Surabaya: The Effect of Using Educational Game Tools (Ape) Ferris Wheel On The Ability To Recognize Number Symbols In Group A Children At Mekar Sari Kindergarten In Surabaya”. Indonesian Journal of Early Childhood: Jurnal Dunia Anak Usia Dini, vol. 5, no. 2, July 2023, pp. 382-8, doi:10.35473/ijec.v5i1.2385.