HERVIYANTI, Herviyanti; PRASETYO, T.B.; JUNIARTI, Juniarti; PRIMA, S.; WAHYUNI, S. The Role of Powder Sub-bituminous Coal with Sodium Hydroxide (NaOH) to Improve Chemical Properties of Ultisols. International Journal on Advanced Science, Engineering and Information Technology, [S. l.], v. 8, n. 5, p. 2052–2058, 2018. DOI: 10.18517/ijaseit.8.5.3543. Disponível em: https://ijaseit.insightsociety.org/index.php/ijaseit/article/view/3543. Acesso em: 24 aug. 2024.