According to Chapter 2, what other literary works about Sai Baba existed before the Sai Satcharitra was written?

Chapter 2 of the Sai Satcharitra acknowledges several other texts dedicated to Sai Baba's life and teachings. It specifically mentions two books by Das Ganu, 'Bhakta-Lilamrut' and 'Santa-Kathamrut,' noting that the former contains three chapters on Shri Sai's life. The chapter also refers to Raghunath-Savitri’s 'Bhajanmala,' which contains abhangs and verses about Baba. For the Gujarati-speaking community, works by devotees Amidas and Bhavani Metha are mentioned. Finally, it notes a series of stories being published in Pune under the name 'Sai Prabha,' indicating a growing body of literature about Baba at the time.