Sriyotai W, Suwan D. Method for determination of phthalate contents in PVC plastic toys using gas chromatography/mass spectrometry. Bull Appl Sci. [internet]. 2022 Oct. 7 [cited 2025 Dec. 7];1(1):23-9. available from: https://ph03.tci-thaijo.org/index.php/BAS/article/view/172