, this is considered the most academically authentic version, though the English translation of it (by Bibek Debroy) is generally a commercial product. You can find various volumes of the original Sanskrit text on the Internet Archive Mahabharata Resources (Multilingual) : Sites like Mahabharata Resources
Before diving into download links and sources, it is crucial to understand the value of the bilingual format. Mahabharata Sanskrit With English Translation Pdf