Shureen Faris Abdul Shukor, N. H. A. H. N. U. S. A. B. “Constructing a Conceptual Framework on Sound Scape Approach for City User”. International Journal of Advanced Science and Technology, Vol. 28, no. 14, Nov. 2019, pp. 444 -7, http://sersc.org/journals/index.php/IJAST/article/view/1511.