“Multi-Attribute Analysis and Probabilistic Neural Network (PNN) Method for Predicting Carbonate Volume and Water Saturation in Biogenic Gas Reservoir: A Case Study of the Nias Basin, North Sumatra”, Geocelebes, vol. 10, no. 2, pp. 343–358, Oct. 2026, doi: 10.70561/geocelebes.v10i2.52563.