Alaubydi, M.A. et al. 2012. Preparation of antibodies type IgY against Salmonella typhi lipopolysaccharide in chicken eggs. Journal of Biotechnology Research Center (JOBRC). 6, 2 (Jun. 2012), 15–22. DOI:https://doi.org/10.24126/jobrc.2012.6.2.214.