DOI: https://doi.org/10.25130/tjes.26.2.01
DOI: https://doi.org/10.25130/tjes.26.2.02
DOI: https://doi.org/10.25130/tjes.26.2.03
DOI: https://doi.org/10.25130/tjes.26.2.04
DOI: https://doi.org/10.25130/tjes.26.2.05
DOI: https://doi.org/10.25130/tjes.26.2.06
DOI: https://doi.org/10.25130/tjes.26.2.07