KALE, M. A.; A. KALE, Rashmi. Preparation of poly methyl methacrylate thin film by solution casting method to study its ultrasonic velocity. International Journal of Physical Research, [S. l.], v. 6, n. 1, p. 33–34, 2018. DOI: 10.14419/ijpr.v6i1.8664. Disponível em: https://www.sciencepubco.com/index.php/IJPR/article/view/8664.. Acesso em: 7 may. 2024.