Besides the Sai Satcharitra, what other books or authors have written about Sai Baba's life and leelas according to the text?

Chapter 2 explains that several authors were inspired to write about Sai Baba's life before this text. It mentions that Das Ganu wrote two books: Bhakta-Lilamrut and Santa-Kathamrut. The sweet life of Shri Sai is described in three chapters of Bhakta-Lilamrut, and a knowledge-story from Sai is in Chapter 57 of Santa-Kathamrut. The chapter also points to Raghunath-Savitri’s Bhajanmala, miscellaneous poems by Das Ganu, and works for Gujarati devotees by Amidas and Bhavani Metha. Furthermore, a publication named Sai Prabha was publishing a series of Baba's stories in Pune.