Giyanto, Thohirudin, & M. Nasrun. (2026). SYNTHESIS OF GRAPHENE NANOSHEETS FROM COCONUT SHELLS AT A ROASTING TEMPERATURE OF 220°C AND A PYROLYSIS TEMPERATURE OF 500°C USING SEM-EDX OBSERVATIONS AND PERFORMANCE TESTS. Bulletin of Engineering Science, Technology and Industry, 4(3), 1965–1977. Retrieved from https://bestijournal.org/index.php/go/article/view/235