Jaheon Gu and Wooyong Chung and Mijung Koo and Seonbok Lee and Gyoutae Park and Sangguk Ahn and Hiesik Kim and Jungil Park, Development and Evaluation of a Portable Ammonia Gas Detector. journal = {International Journal of Electronics and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology. February 2016, vol. 112(4). 475 - 478 [viewed 23 September 2024]. Available from: https://publications.waset.org/pdf/10004065.