1. Permana, D., K. Minamihata, T. Tatsuke, J.M. Lee, T. Kusakabe, M. Goto and N. Kamiya, 2019. Polymerization of horseradish peroxidase by the laccase‐catalyzed tyrosine coupling reaction. Biotechnol. J., Vol. 14. 10.1002/biot.201800531.
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2. Putra, H.E., D. Permana and Djaenudin, 2018. Preliminary study of the use of sulfonated polyether ether ketone (SPEEK) as proton exchange membrane for microbial fuel cell (MFC). Int. J. Renew. Energy Dev., 7: 7-12.
3. Permana, D., K. Minamihata, M. Goto and N. Kamiya, 2018. Laccase-catalyzed bioconjugation of tyrosine-tagged functional proteins. J. Biosci. Bioeng., 126: 559-566.
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4. Permana, D., D. Rosdianti, S. Ishmayana, S.D. Rachman, H.E. Putra, D. Rahayuningwulan and H.R. Hariyadi, 2015. Preliminary investigation of electricity production using dual chamber microbial fuel cell (DCMFC) with Saccharomyces cerevisiae as biocatalyst and methylene blue as an electron mediator. Proc. Chem., 17: 36-43.
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5. Gaffar, S., D. Permana, T. Subroto, D. Natalia and S. Soemitro, 2015. Expression and secretion of Saccharomycopsis fibuligera R64 α-Amylase with native signal peptide in Pichia pastoris. Proc. Chem., 17: 177-183.
6. Gaffar, S., D. Permana, D.P. Rahmawati, T.N. Meirina and A.M.I. Syihab et al., 2015. Effect of methanol inducer concentration and additional carbon sources sorbitol and manitol to α-amylase Saccharomycopsis fibuligera R64 production in Pichia pastoris. Indonesian J. Applied Chem., 13: 58-64.
7. Permana, D., H.R. Haryadi, H.E. Putra, W. Juniaty, S.D. Rachman and S. Ishmayana, 2013. Evaluation of methylene blue as electron mediator in microbial fuel cell with Acetobacter aceti as biocatalyst. Molekul, 8: 78-88.
8. Putra, H.E., D. Permana, A.S. Putra, Djaenudin and H.R. Hariyadi, 2012. Utilization of microbial fuel cell for electricity generation from wastewater of food industry. Indonesian J. Applied Chem., 14: 78-82.