books the law is the obligation and the right is the first difference
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# Principles of law, right and obligation
# Right Law Obligation Theory
# The difference between right and obligation
# Detailing the obligation and explaining in the law
# Civil law sources of obligation
# Sources of Obligation in Civil Law
# Law and Obligation
# Obligation provisions in civil law
# Introduction to law and obligation theory
# Civil law provisions of obligation
# Civil law term and obligation
# Choose the obligation in civil law
# Civil law rules of obligation
# Civil law in obligation
# Obligation in rem in civil law
# Obligation and proof of civil law
# Obligation theory in civil law
# Obligation in the new civil law
# Effects of obligation in civil law
# Obligation theory in contract law
