Published: 2010-06-16

DOI: https://doi.org/10.29122/jstmc.v11i1.2175
DOI: https://doi.org/10.29122/jstmc.v11i1.2176
DOI: https://doi.org/10.29122/jstmc.v11i1.2178
DOI: https://doi.org/10.29122/jstmc.v11i1.2179