AFRAH, Bazlina Dawami; SAJJAKULNUKIT, Boonrood; BUSTAN, Muhammad Djoni. Product Competitiveness of Upgrading Brown Coal (UBC) Process in Indonesia. International Journal on Advanced Science, Engineering and Information Technology, [S. l.], v. 7, n. 4, p. 1289–1295, 2017. DOI: 10.18517/ijaseit.7.4.2488. Disponível em: http://ijaseit.insightsociety.org/index.php/ijaseit/article/view/2488. Acesso em: 3 jun. 2024.