Key Words: classification, correlations, expenditure, living standards, principal component analysis, socio-economic status and wealth index
El-Houssainy Abdel Bar Rady, Elhoussainy@yahoo.com
Ahmed Amin El-Sheikh, Aham103@yahoo.com
Mohamed ould Aly Oumar, firstname.lastname@example.org
Editor: Knaub,James R., James.email@example.com
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