KHALAF, Moayad. 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). University of Thi-Qar Journal of Science, University of Thi-Qar, Thi-Qar, Iraq, v. 2, n. 2, p. 89–95, 2010. Disponível em: http://www.jsci.utq.edu.iq/index.php/main/article/view/354.. Acesso em: 12 may. 2025.