1. Han Junqi, Zhang Youlin, Dai Guihua,et al. 2004. Study on the extraction of sunflower seed oil by ultrasonic wave treatment [J]. Food and Oil, (9): 24–25. (in Chinese)
2. Li Huimin, Qin Xinmin, Qin Pingsheng,et al. 2004. Research on ultrasonic wave extracting proteins from pollen tubes of Shatinyu [J]. Journal of Guangxi Normal University,22(1): 82–86. (in Chinese)
3. Li Linqiang, Li Jianke, Liu Yingli. 2003. Study on the extraction of seed kernel oil ofPinus armandi via ultrasonic treatment [J]. Journal of Northwest Sci-tech Univ. of Agri. and For. (Nat. Sci. Ed.),31(5): 115–117. (in Chinese)
4. Li Yunyan, Song Guangsen. 2003. Ultrasonic-assisted extraction of pigment from chest seed shell [J]. Food Science and Technology,8: 57–59. (in Chinese)
5. Shi Xingang, Wang Xiao, Geng Yanling,et al. 2004. Ultrasonic extraction of flavonoids from male inflorescence ofPopulus tomentosa carr [J]. Journal of Shandong Institute of Light Industry,18(2): 56–59. (in Chinese)