What are the two main examples of comprehensive Guru biographies in Maharashtra mentioned in the preface, and who were their authors?

The preface in Chapter 0 notes a general lack of detailed, poetic, and comprehensive works suitable for devotional reading in Maharashtra, but it highlights two prominent exceptions. The first is the 'Brihat or Thorale Guru Charitra,' a sweet and graceful biography about Shri Samarth Sadguru Narsimha Saraswati Maharaj, which was written by Shri Saraswati Gangadhar. The second significant work mentioned is the more recent 'Shri Sai Satcharita,' an inspirational biography of Shri Sai Baba authored by the devotee Shri Govind Raghunath, also known as Annasaheb Dabholkar.