“ Effect of Alkali Lignin on Heat of Fusion, Crystallinity and melting points of Low density polyethylene(LDPE), Meduim density polyethylene(MDPE) and High density polyethylene(HDPE)” (2010) University of Thi-Qar Journal of Science, 2(2), pp. 89–95. Available at: http://jsci.utq.edu.iq/index.php/main/article/view/354 (Accessed: 17 May 2024).