From distribution. questionnaire, satisfaction and performance of jazz, free registered overall a very good level. This equals an average 4.70 when considered as a text list, we can see that a list of the most appropriate evaluation is appropriate in the. Average 4.80 was equal to a very good level. After the student and student sample. the trial is completed. It found that there was a cost price in the invention is very low and cost-effective fabrication tools for their own use when compared to buying a new shaft for free or krokkraek.
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