Synthesis and Characterization of Carbon Micro Balls from Graphite by the Arc Discharge Method. Pakistan Journal of Analytical & Environmental Chemistry, Pakistan, v. 20, n. 1, p. 88 – 92, 2019. DOI: 10.21743/pjaec/2019.06.12. Disponível em: http://pjaec.pk/index.php/pjaec/article/view/168. Acesso em: 4 jul. 2025.