Md Ralib AA, Lukman Hekiem NL, MH MA, et al. Chitosan Coating on Quartz Crystal Microbalance Gas Sensor for Isopropyl Alcohol and Acetone Detection. IJIE. 2022;14(3):241-249. Accessed August 7, 2026. https://journal.uthm.edu.my/index.php/ijie/article/view/10748