Umunakwe, R., A. Oyetunji, B. O. Adewuyi, W. U. . Eze, U. S. Nwigwe, and I. J. Umunakwe. “Mechanical Properties and Microstructure of Hybrid Vulcanized Natural Rubber Filled With Carbon Black and Nano-CaCO<sub>3</sub> from <i>Achatina achatina</I> Shells”. Journal of Metals, Materials and Minerals, vol. 29, no. 4, Dec. 2019, doi:10.55713/jmmm.v29i4.555.