https://ia600606.us.archive.org/21/items/TheRiseOfIslamAndTheBengalFrontier12041760ByRichardMEaton/The%20Rise%20of%20Islam%20and%20the%20Bengal%20Frontier%201204-%201760%20by%20Richard%20M%20Eaton.pdf

https://ia601504.us.archive.org/32/items/in.ernet.dli.2015.303612/2015.303612.Banglar-Itihaser.pdf