“Chemical, Morphological Characterizations of Ririwai Biotite and Determination of Yield Point of its Weighting Agent Application in Drilling Mud”, NIJOTECH, vol. 40, no. 2, pp. 269–274, Apr. 2021, Accessed: May 05, 2026. [Online]. Available: https://nijotech.com/index.php/nijotech/article/view/2499