Article 3 adult 3 female 3 human 3 3D printing 2 Area-specific resistances 2 Barium compounds 2 Cathodes 2 Cerium compounds 2 Electrochemical performance 2 Energy conservation 2 Environmental technology 2 Humans 2 Intermediate temperatures 2 Lanthanum compounds 2 Malaysia 2 Printed circuit boards 2 Proton-conducting solid oxide fuel cells 2 Resonance frequencies 2 Sol-gels 2 Solid oxide fuel cells (SOFC) 2 Strontium compounds 2 Zirconium compounds 2 questionnaire 2 3-D printing 1 3D Printing 1 3D print 1 3D printers 1 3D-printing 1 AR application 1