Who among the following is the author of the book 'The Problems of the Far East' ?

Who among the following was the author of the book 'Poverty and Un-British Rule in India'?

Who is the author of the famous book 'Gulamgiri' ?

Who, among the following, wrote the book ‘Bahuvivah’?

Who among the following spiritual figures authored the famous inspirational book 'Powers of the Mind'?

Who of the following is the author of a collection of poems called "Golden Threshold"?