Business News Illegal poultry farm found to be cause of ammonia pollution in Sungai Johor October 29, 2017 johorbiznet Johor News Illegal poultry farm found to be cause of ammonia pollution in Sungai Johor New Straits Times Online Singapore’s water supply not affected by pollution in Johor River: PUB TODAYonline Johor orders shutdown of poultry farm, factory that polluted river after water supply cut The Straits Times Full coverage Source: Business News Feed