Abro, A. W., A. Kumar, M. A. Keerio, Z. H. Shaikh, N. Bheel, and A. A. Dayo. “An Investigation on Compressive Strength of Concrete Blended With Groundnut Shell Ash”. Neutron, Vol. 20, no. 2, Jan. 2021, pp. 123 -27, http://ejournal.worldconference.id/index.php/neutron/article/view/87.