Published: 2020-01-26

DOI: https://doi.org/10.19109/jkpi.v4i1.5115
DOI: https://doi.org/10.19109/jkpi.v4i1.5937
DOI: https://doi.org/10.19109/jkpi.v4i1.5936
DOI: https://doi.org/10.19109/jkpi.v4i1.5769
DOI: https://doi.org/10.19109/jkpi.v4i1.5454