©2013 National Research Council of Thailand
Orawan Tue-ngeun. 1997. Development of flow injection analysis systems for the determination of phosphate nitrite nitrate chromium and calcium. Chiang Mai:Chiang Mai University;
Orawan Tue-ngeun. (1997) Development of flow injection analysis systems for the determination of phosphate nitrite nitrate chromium and calcium (รายงานผลงานวิจัย). Chiang Mai University:Chiang Mai.
Orawan Tue-ngeun. Development of flow injection analysis systems for the determination of phosphate nitrite nitrate chromium and calcium. Chiang Mai:Chiang Mai University, 1997.
Orawan Tue-ngeun. (1997) Development of flow injection analysis systems for the determination of phosphate nitrite nitrate chromium and calcium (รายงานผลงานวิจัย). Chiang Mai University:Chiang Mai.