Y. Variyana, A. N. Rahma, and M. Mahfud, “Multi-Objective Optimization of Solvent-Free Microwave Extraction vs. Microwave Hydrodiffusion and Gravity for Amomum compactum Essential Oil”, J. Multidiscip. Appl. Nat. Sci., vol. 6, no. 2, pp. 568–591, Jan. 2026.