Falih, Ghufran, Nada Al-Zubaidi, and Asawer Al-Wasiti. “Improving the Performance of Drilling Fluid Using Lignite Nano Particles”. Association of Arab Universities Journal of Engineering Sciences 26, no. 1 (March 31, 2019): 100-105. Accessed November 23, 2024. https://jaaru.org/index.php/auisseng/article/view/278.