IFA ARISTIA SANDRA EKAYATI; AGUSTINA, Devya Titin; PURNAMA, Anindya. UJI KELAYAKAN MEDIA BUSY BOOK UNTUK MENINGKATKAN KEMAMPUAN BERHITUNG ANAK USIA 4- 5 TAHUN DI ERA PANDEMI COVID 19. Prosiding SNasPPM, [S. l.], v. 5, n. 2, p. 154–158, 2021. Disponível em: http://prosiding.unirow.ac.id/index.php/SNasPPM/article/view/396. Acesso em: 19 may. 2024.