Sastrowiyono, S. 2018. 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, 1 (Jun. 2018), 15–22. DOI:https://doi.org/10.22219/jemmme.v3i1.5761.