Knowledge, attitudes and practices of urban, rural and Bedouin woman as to purchasing and storing various commodities and the effect of storing some dairy products on its chemical and microbic content

alimentos almacenamiento chemical composition comportamiento humano comportement humain composición quimica composition chimique egipto egypt family size foods human behaviour papel de la mujer produit alimentaire role of women rôle des femmes stockage storage taille de la famille tamaño de la familia égypte