Nwiyoronu,K Joe, , Onojake,C Mudiagha, , Onuoha,O Garrick, and Obuzor,G Ukalina. "Improving Properties of Water-Based Drilling Mud using Hamburger Bean and African Oil Bean Shell Powders as Eco-friendly Fluid Loss Retardant Additive", Journal of Petroleum Science and Technology, 14, 2, 2024, 10-15. doi: 10.22078/jpst.2025.5385.1929