Kruanetr S, Prasertboonyai* K. UV-Vis Spectrophotometric Method Using Natural Reagent from Vigna unguiculata subsp. sesquipedalis for Tetracycline Determination in Pharmaceutical Samples. Curr. Appl. Sci. Technol. [internet]. 2020 Aug. 4 [cited 2025 Dec. 6];21(1):51-64. available from: https://li01.tci-thaijo.org/index.php/cast/article/view/245823