Giyanto, Thohirudin, M. Nasrun. 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. BESTI [Internet]. 2026 Sep. 7 [cited 2026 Sep. 9];4(3):1965-77. Available from: https://bestijournal.org/index.php/go/article/view/235