PAVLOVA, Vanya; PASKALEVA, Ruska; IVANOVA, Violeta. STUDY OF THE DURATION OF NIGHT AND AFTERNOON SLEEP IN PRESCHOOL AGE CHILDREN. KNOWLEDGE - International Journal , [S. l.], v. 55, n. 4, p. 657–663, 2022. Disponível em: https://ojs.ikm.mk/index.php/kij/article/view/5742. Acesso em: 27 aug. 2026.