Mudashir, Gafar. “ASSESSMENT OF ACOUSTIC PROPERTY OF SAWDUST AND FINE SHARP SAND FOR THE FABRICATION OF SOUND-PROOF SECURITY DOOR”. FUDMA JOURNAL OF SCIENCES 6, no. 1 (March 31, 2022): 129 - 134. Accessed July 22, 2024. https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/832.