DOI: https://doi.org/10.23887/ls.v18i1

Published: 2018-11-15

DOI: https://doi.org/10.23887/ls.v18i1.16035
DOI: https://doi.org/10.23887/ls.v18i1.16036
DOI: https://doi.org/10.23887/ls.v18i1.16038
DOI: https://doi.org/10.23887/ls.v18i1.16039
DOI: https://doi.org/10.23887/ls.v18i1.16040