Sastrowiyono, Supriyono. “The Effect of the Ball Size on the Product Characteristics of Shaker HEBM to Produce Nano Particle from Bamboo Charcoal”. Journal of Energy, Mechanical, Material, and Manufacturing Engineering 3, no. 1 (June 30, 2018): 15–22. Accessed September 27, 2024. https://ejournal.umm.ac.id/index.php/JEMMME/article/view/5761.