Articles
https://doi.org/10.23869/362
views: 279 | downloads: 156
views: 279 | downloads: 156
https://doi.org/10.23869/363
views: 172 | downloads: 156
views: 172 | downloads: 156
Accepted M. Nadjib 13(2) 2008
153-156
https://doi.org/10.23869/364
views: 192 | downloads: 118
views: 192 | downloads: 118
Accepted Sri Sumarsih 13(2) 2008
157-161