Juncai, Hou, Hu Yaohua, and Guo Kangquan. 2014. “Application of Modified Quartz Crystal Sensors: Detection of Isobutyl Alcohol, Ethyl Acetate and Ethylene”. International Journal of Agricultural and Biological Engineering 7 (5). Beijing, China:71-77. https://ijabe.org/index.php/ijabe/article/view/1260.