Published: 2019-10-28

DOI: https://doi.org/10.30656/protekinfo.v6i1.1068
DOI: https://doi.org/10.30656/protekinfo.v6i1.1691
DOI: https://doi.org/10.30656/protekinfo.v6i1.1752
DOI: https://doi.org/10.30656/protekinfo.v6i1.1745
DOI: https://doi.org/10.30656/protekinfo.v6i1.737