Published: 01-12-2014

DOI: https://doi.org/10.19109/td.v19i02.14
DOI: https://doi.org/10.19109/td.v19i02.15
DOI: https://doi.org/10.19109/td.v19i02.16
DOI: https://doi.org/10.19109/td.v19i02.17
DOI: https://doi.org/10.19109/td.v19i02.18
DOI: https://doi.org/10.19109/td.v19i02.19
DOI: https://doi.org/10.19109/td.v19i02.20
DOI: https://doi.org/10.19109/td.v19i02.21