WASET
    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 04 May 2024]. Available from: https://publications.waset.org/pdf/10004065.