Puari, Aninda. “Laboratory Solid Waste from Practical Activity As Activated Carbon Precursor for Reducing Methylene Blue in the Laboratory Wastewater”. Jurnal Temapela 3, no. 2 (May 31, 2021): 73-79. Accessed April 26, 2024. http://temapela.labdasar.unand.ac.id/index.php/temapela/article/view/119.