Published: 2019-12-31

DOI: https://doi.org/10.19109/studiamanageria.v1i2.4165
DOI: https://doi.org/10.19109/studiamanageria.v1i2.4872
DOI: https://doi.org/10.19109/studiamanageria.v1i2.4154
DOI: https://doi.org/10.19109/studiamanageria.v1i2.4145
DOI: https://doi.org/10.19109/studiamanageria.v1i2.4162
DOI: https://doi.org/10.19109/studiamanageria.v1i2.4873