Retno Budi Rahayu, Resmiati, Rahmawati. Meningkatkan Kemampuan Mengenal Bentuk Geometri Tema Lingkungan Media Puzzle Ball Berbantuan Whatsapp di Masa Covid-19 RA Al Khoiriyyah 02 Semarang. EduSpirit [Internet]. 2024 May 31 [cited 2025 Jul. 9];1(1):131-6. Available from: https://journal.makwafoundation.org/index.php/eduspirit/article/view/880