Siregar, Sri Hilma, Olif Syahbella, and Aulia Rizki Ramadhanti. “Modification of Montmorillonite With Sawdust As Noise Dampening Bricks”. Acta Chimica Asiana 7, no. 1 (April 18, 2024): 443–448. Accessed November 21, 2024. https://aca.unram.ac.id/index.php/ACA/article/view/176.