“Analisis Reduksi Emisi Gas Kendaraan Bermotor Menggunakan Adsorben Berbasis Biomassa Limbah Tempurung Siwalan”, jse, vol. 11, no. 1, Jan. 2026, Accessed: Jun. 30, 2026. [Online]. Available: http://jse.serambimekkah.id/index.php/jse/article/view/1418