The Effects Of Lignin Purification On The Performance Of Iron Complex Drilling Mud Thinner. Jurnal Teknologi, [S. l.], v. 44, n. 1, p. 83–94, 2012. DOI: 10.11113/jt.v44.387. Disponível em: https://journals.utm.my/jurnalteknologi/article/view/387.. Acesso em: 23 jul. 2024.