books مبادئ الإحصاء الاجتماعيين
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# Principles of Statistics, Sana'a University
# Principles of social statistics and their applications in social work
# Principles of Social Statistics Lee Anwar Attia Al-Adl
# Principles of Social Statistics Hassan Mohamed Hassan
# Principles of Statistics, Zagazig University
# Principles of Social Statistics by Hafez Library
# Principles of Statistics, Damascus University
# Principles of Statistics University of Science and Technology
