Study of Production of Ammonia from Natural Gas and Air. International Journal of Advance Engineering and Research Development (IJAERD), [S. l.], v. 4, n. 4, p. 1168–1180, 2017. Disponível em: https://www.ijaerd.org/index.php/IJAERD/article/view/4866. Acesso em: 9 sep. 2025.