Casteel, C.; Peek-Asa, C.; Limbos, M.A. (2007). "Predictors of nonfatal assault injury to public school teachers in Los Angeles City". American Journal of Industrial Medicine. 50 (12): 932–939. doi:10.1002/ajim.20520. PMID17979131.
Casteel, C.; Peek-Asa, C.; Limbos, M.A. (2007). "Predictors of nonfatal assault injury to public school teachers in Los Angeles City". American Journal of Industrial Medicine. 50 (12): 932–939. doi:10.1002/ajim.20520. PMID17979131.