Soudavone Phiphatphon และ Wirat Ruengsitagoon. (2022) Simple Reagent Simple Reagent for Determination of Doxycycline and Tetracycline in Pharmaceuticals by UV - Visible Spectrophotometric Method. <i>Isan Journal of Pharmaceutical Sciences</i>, <i>18</i>(2), 52-62.Soudavone Phiphatphon และ Wirat Ruengsitagoon. "Simple Reagent Simple Reagent for Determination of Doxycycline and Tetracycline in Pharmaceuticals by UV - Visible Spectrophotometric Method". Isan Journal of Pharmaceutical Sciences 18 (2022):52-62.Soudavone Phiphatphon และ Wirat Ruengsitagoon. Simple Reagent Simple Reagent for Determination of Doxycycline and Tetracycline in Pharmaceuticals by UV - Visible Spectrophotometric Method. Faculty of Pharmaceutical Sciences KKU MSU UBU:ม.ป.ท. 2022.