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<xml><bibliography><APA>Supachai Prainetr. (2016) Development of low cost heart rate device for contribution rural local medical in Nakhon Phanom province Thailand. &lt;i&gt;KKU Engineering Journal&lt;/i&gt;, &lt;i&gt;43&lt;/i&gt;(S2), 271-274.</APA><Chicago>Supachai Prainetr. "Development of low cost heart rate device for contribution rural local medical in Nakhon Phanom province Thailand". KKU Engineering Journal  43 (2016):271-274.</Chicago><MLA>Supachai Prainetr. Development of low cost heart rate device for contribution rural local medical in Nakhon Phanom province Thailand. Faculty of Engineering, Khon Kaen University:ม.ป.ท. 2016.</MLA></bibliography></xml>
