Liu, T., Y.L. Peng, and J.H. Hou. “Microwave-Assisted Extraction of Organic Compounds from Yanan Coal at Room Temperature”. Asian Journal of Chemistry 26, no. 22 (November 6, 2014): 7611–7615. Accessed July 5, 2024. https://asianpubs.org/index.php/ajchem/article/view/26_24_27.