ELENKOVA, D.; BERBEROVA , R. Results of a parents survey on the single-use baby nappies and waste treatment. Annual of Natural Sciences Department, [S. l.], v. 7, p. 9–18, 2022. DOI: 10.33919/ansd.22.7.2. Disponível em: https://ojs.nbu.bg/index.php/ANSD/article/view/859. Acesso em: 21 may. 2024.