Purnamasari, Heruningtyas Desi, et al. “Explosive Signature of The April 30th, 2024 Ruang Volcano Eruption in The Sangihe Arc, Indonesia, Inferred from Erupted Material Characteristics: A Preliminary Assessment”. Indonesian Journal on Geoscience, vol. 12, no. 3, Nov. 2025, pp. 11-17, doi:10.17014/ijog.12.3.11-17.