R. G. P. Abdon, X. J. B. Pelicano, L. J. M. Salundaga, and C. M. G. Viado, “Performance Study of Double Chamber Microbial Fuel Cell Operating with Dihydrogen Phyllosilicate Clay and Activated Carbon from Coconut Shells as Proton Exchange Membrane”, Chemical Engineering Transactions, vol. 106, pp. 37-42, Dec. 2023.