Shaheen, Mohamed N. F.; Elmahdy, Elmahdy M.; Chawla-Sarkar, Mamta (2019). "Quantitative PCR-based identification of enteric viruses contaminating fresh produce and surface water used for irrigation in Egypt". Environmental Science and Pollution Research. 26 (21): 21619–21628. Bibcode:2019ESPR...2621619S. doi:10.1007/s11356-019-05435-0. PMID31129895. S2CID167210903.
Shaheen, Mohamed N. F.; Elmahdy, Elmahdy M.; Chawla-Sarkar, Mamta (2019). "Quantitative PCR-based identification of enteric viruses contaminating fresh produce and surface water used for irrigation in Egypt". Environmental Science and Pollution Research. 26 (21): 21619–21628. Bibcode:2019ESPR...2621619S. doi:10.1007/s11356-019-05435-0. PMID31129895. S2CID167210903.
Shaheen, Mohamed N. F.; Elmahdy, Elmahdy M.; Chawla-Sarkar, Mamta (2019). "Quantitative PCR-based identification of enteric viruses contaminating fresh produce and surface water used for irrigation in Egypt". Environmental Science and Pollution Research. 26 (21): 21619–21628. Bibcode:2019ESPR...2621619S. doi:10.1007/s11356-019-05435-0. PMID31129895. S2CID167210903.
Shaheen, Mohamed N. F.; Elmahdy, Elmahdy M.; Chawla-Sarkar, Mamta (2019). "Quantitative PCR-based identification of enteric viruses contaminating fresh produce and surface water used for irrigation in Egypt". Environmental Science and Pollution Research. 26 (21): 21619–21628. Bibcode:2019ESPR...2621619S. doi:10.1007/s11356-019-05435-0. PMID31129895. S2CID167210903.