1(30)2021
In this Number
(7 papers)
DOI: https://doi.org/10.23939/jgd2021.01.005
5-16
DOI: https://doi.org/10.23939/jgd2021.01.017
17-24
DOI: https://doi.org/10.23939/jgd2021.01.025
25-35
DOI: https://doi.org/10.23939/jgd2021.01.036
36-47
DOI: https://doi.org/10.23939/jgd2021.01.048
48-57
DOI: https://doi.org/10.23939/jgd2021.01.058
58-64