Kamthita P, Leelasinlatham B. Optimization of Base Oil Recovery from Used Lubricating Oil through Extraction-Adsorption using Response Surface Methodology. J. Curr. Sci. Technol. [internet]. 2025 Sep. 20 [cited 2025 Sep. 26];15(4):147. available from: https://ph04.tci-thaijo.org/index.php/JCST/article/view/10502