Kyari, K. R., I. S. Aji, and M. Daura. 1. “Hardness, Density and Water Absorption Properties of Doum Palm Shell Particles and Sugarcane Bagasse Reinforced Polypropylene Hybrid Composite”. ARID ZONE JOURNAL OF ENGINEERING, TECHNOLOGY AND ENVIRONMENT 21 (1), 261-69. https://azojete.com.ng/index.php/azojete/article/view/1028.