DOI : https://doi.org/10.14258/leglin(2019)1401
DOI : https://doi.org/10.14258/leglin(2019)1402
DOI : https://doi.org/10.14258/leglin(2019)1403
DOI : https://doi.org/10.14258/leglin(2019)1404
DOI : https://doi.org/10.14258/leglin(2019)1405