OBETA, Perpetual Oby, and Esther SAMUEL. “Rheological Evaluation of Mucuna Sloanei (Ukpo) As a Sustainable Bio-Polymer Viscosifier for Water-Based Drilling Fluids in Nigeria”. Direct Research Journal of Engineering and Information Technology 14, no. 1 (April 29, 2026): 150–159. Accessed June 12, 2026. https://journals.directresearchpublisher.org/index.php/drjeit/article/view/738.