1. Amaranthus;Aellen,1990
2. Factors influencing the occurrence of drug residues in animal tissues after the use of antimicrobial agents in animal feeds;Bevill;JAVMA,1984
3. Sulfonamides;Bevill,1988
4. Sulphadimethoxine as environmental tracer to evaluate phytotoxicity in crop;Brambilla,1996
5. Plantago;Chater,1990