Dwicahyono, H. B. “Analysis of NH3 Content, Individual Characteristics and Respiratory Scavenger Complaint in Landfills Benowo Rubbish and Not Scavenger Around Landfills Benowo Surabaya”. JURNAL KESEHATAN LINGKUNGAN, vol. 9, no. 2, July 2018, pp. 135-44, doi:10.20473/jkl.v9i2.2017.135-144.