Who among the following was the author of the book ‘Tarikh-i-Firoz Shahi’?

‘Tarikh-i-Firoz Shahi’ is an invaluable book on the history of the Delhi Sultanate, authored by Ziauddin Barani. It covers the period from the reign of Ghiyas ud din Balban to the first six years of the reign of Firoz Shah Tughlaq.