Munawaroh, S. dkk. 2020. Contamination of water and soil of rice fields with soil transmitted helminths as source of transmission to farmers in Grogol sub-district, Kediri district. Qanun Medika - Jurnal Kedokteran FK UMSurabaya. 4, 1 (Jan 2020), 51–58. DOI:https://doi.org/10.30651/jqm.v4i1.3402.