[1]
G. Saragih, V. Purwandari, A. Z. Akbari, N. Silitonga, and A. Abdillah, “Optimization of Solvent-Assisted Exfoliation of Low Rank Coal for Few-Layer Graphene Production via Multi-Stage Ultrasonication”, j.ris.technol.pencegah., vol. 16, no. 2, pp. 168–175, Nov. 2025.