Zulkefli, Nor Afifah Hanim, Yeak Su Hoe, and Munira Ismail. “Multiscale Boundary Element Method for Acoustic Wave Model”. MATEMATIKA 35, no. 3 (December 1, 2019). Accessed November 21, 2024. https://matematika.utm.my/index.php/matematika/article/view/387-395.