WULAN NUR HIKMAH; SITI NURFAIZAH; UDI MUFRODI; ULFAH MARHAMAH; ULFARIZKINA. Observation Report on Lack of Early Childhood Cognitive Development (Case Study on Students of Paud Darussalam and Paud Anggrek). DIROSAT: Journal of Education, Social Sciences & Humanities, [S. l.], v. 3, n. 1, p. 65–71, 2025. DOI: 10.58355/dirosat.v3i1.99. Disponível em: https://dirosat.com/index.php/i/article/view/99. Acesso em: 22 sep. 2025.