Can you identify the two most significant and detailed Guru biographies from Maharashtra mentioned in the text and name their authors?

The text highlights two exceptionally detailed, poetic, and renowned Guru biographies from Maharashtra that are considered suitable for Parayan and Saptah. As Chapter 0 describes, the first is the 'Brihat or Thorale Guru Charitra,' a sweet and graceful biography of Shri Samarth Sadguru Narsimha Saraswati Maharaj, which was authored by Shri Saraswati Gangadhar. The second major work mentioned is the more recent 'Shri Sai Satcharita,' an inspirational biography of Shri Sai Baba Maharaj written by his devotee, the late Shri Govind Raghunath, who was also known as Annasaheb Dabholkar.