Rohmat, N., Affi, J., Gunawarman, Handayani, M., & Yetri, Y. (2026). Synthesis of Graphene-Like Carbon from Coconut Shell and Electrical Conductivity Properties. Piston: Journal of Technical Engineering, 9(2), 90–93. Retrieved from https://openjournal.unpam.ac.id/index.php/Piston/article/view/57489