K. H. Modhhi and A. A. Ismail, “Traffffiic Noiise Effffectts on tthe Effffiiciiency off Teachiing and Sttudyiing Cllassrooms”, NJES, vol. 16, no. 2, pp. 138–155, Jun. 2017, Accessed: Nov. 21, 2024. [Online]. Available: https://nahje.com/index.php/main/article/view/284