Socialization of The Abuse and Danger of Formaline as A Preservative in Food Materials at Lubuk Pakam District. JURNAL PENGMAS KESTRA (JPK), [S. l.], v. 3, n. 1, p. 88–93, 2023. DOI: 10.35451/jpk.v3i1.1767. Disponível em: https://ejournal.medistra.ac.id/index.php/JPK/article/view/1767. Acesso em: 17 dec. 2025.