Syaiful, Syaiful, and Rendy Andana. “PASSENGER CAR SPEED ASSESSMENT RELATIONSHIP TO THE NOISE CAUSED”. ASTONJADRO 10, no. 1 (March 26, 2021): 41–49. Accessed May 17, 2024. http://150.107.142.43/index.php/ASTONJADRO/article/view/3494.