BASHAR JAWAD K. STUDY THE EFFECT OF ADDITION OF NATURAL AND SYNTHETIC MATERIAL ON SOME OF MECHANICAL PROPERTIES OF UNSATURATED POLYESTER: Chemical. Diyala Journal of Engineering Sciences , [S. l.], p. 885–892, 2015. Disponível em: https://djes.info/index.php/djes/article/view/424. Acesso em: 21 nov. 2024.