Why it is often underestimated: Historical Study of Ammonia Gas Exposure Impacts towards Human HealthMutia Pratiwi Diana, Widaningroem Soemantodjo Roekmijati and Warno Utomo SuyudE3S Web Conf., 73 (2018) 06003DOI: https://doi.org/10.1051/e3sconf/20187306003