VANYA, Sandra; RITONGA, Muhammad Husni. The Role of Government and External Relations Department of PT INALUM in Building Public Perception of Environmental Programs in Batu Bara Regency. Jurnal IPTEK Bagi Masyarakat, [S. l.], v. 5, n. 3, p. 555–562, 2026. DOI: 10.55537/j-ibm.v5i3.1627. Disponível em: https://journal.aira.or.id/j-ibm/article/view/1627. Acesso em: 23 apr. 2026.