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Talib, Nor Badariah, Sugeng Triwahyono, Aishah Abdul Jalil, Che Rozid Mamat, Nurrulhidayah Salamun, Nor Aiza Abdul Fatah, Siti Munirah Sidik, and Lee Peng Teh. Utilization of a Cost Effective Lapindo Mud Catalyst Derived From Eruption Waste for Transesterification of Waste Oils. Elsevier Ltd, 2016.

Talib, Nor Badariah, et al. Utilization of a Cost Effective Lapindo Mud Catalyst Derived From Eruption Waste for Transesterification of Waste Oils. Elsevier Ltd, 2016.