Nina Veronica, Naili Sa’ida. The Analysis of QR Code-Based Books to Develop Cognitive Aspects of 5-6 Year Old Children. IPCS [Internet]. 14 November 2024 [dikutip 5 Desember 2024];3(1). Tersedia pada: https://journal.um-surabaya.ac.id/Ipcs/article/view/24543