ALWAN, A. F. Preparation and Characterization of Polylactic Acid by Ring Opening Polymerization Using Unconventional Heating System. Al-Mustansiriyah Journal of Science, [S. l.], v. 33, n. 2, p. 24–30, 2022. DOI: 10.23851/mjs.v33i2.1119. Disponível em: https://mjs.uomustansiriyah.edu.iq/index.php/MJS/article/view/1119. Acesso em: 1 oct. 2022.