Taylor, G. J., and L. Metzger. “Ular Putih: Cerita Dongeng Oleh Adik-Beradik Grimm (negeri Jerman)”. Journal of Modern Languages, vol. 1, no. 1, July 2017, pp. 224-9, http://jml.um.edu.my/index.php/JML/article/view/3985.