1(28)2020
In this Number
(8 papers)
DOI: https://doi.org/10.23939/jgd2020.01.005
5-18
DOI: https://doi.org/10.23939/jgd2020.01.019
19-28
DOI: https://doi.org/10.23939/jgd2020.01.029
29-37
DOI: https://doi.org/10.23939/jgd2020.01.038
38-51
DOI: https://doi.org/10.23939/jgd2020.01.052
52-61
DOI: https://doi.org/10.23939/jgd2020.01.062
62-70
DOI: https://doi.org/10.23939/jgd2020.01.071
71-80