Tosi, S.; Costa, C.; Vesco, U.; Quaglia, G.; Guido, G. (2018). "A survey of honey bee-collected pollen reveals widespread contamination by agricultural pesticides". The Science of the Total Environment615: 208–218. doi:10.1016/j.scitotenv.2017.09.226. பப்மெட்:28968582.
nih.gov
ncbi.nlm.nih.gov
Tosi, S.; Costa, C.; Vesco, U.; Quaglia, G.; Guido, G. (2018). "A survey of honey bee-collected pollen reveals widespread contamination by agricultural pesticides". The Science of the Total Environment615: 208–218. doi:10.1016/j.scitotenv.2017.09.226. பப்மெட்:28968582.