While full digital copies are often under copyright, academic summaries and specific chapters can be found on several educational platforms: Academic Repositories : Portions and study guides are available through the UnADM Open Educational Resources Academia.edu Study Portals : Summaries and detailed indexes are frequently updated on Slideshare specific source of obligations , such as the requirements for a valid contract?

The active party (creditor) and the passive party (debtor).

While searching for the PDF online is very common among students due to the high cost or scarcity of physical legal textbooks:

You can find academic summaries and previews through university repositories and educational platforms:

Recent editions include a specialized chapter on digital signatures and electronic commerce.

Analysis of the object of the obligation and its financial value. 3. Transmission of Obligations