Try this link https://www.sciencedirect.com/science/article/am/pii/S0925838815013596

Hi

Use Sherrer formula you can

Pankaj Singh Rawat Sir, this paper also mentions individual crystallite sizes

V R Arun Prakash Sir, is scherer formula used for composite calculations as well? how?

Amer Al-Taee Thankyou sir.

I using Sherrer formula. You can check youtube for it

Hasan Sarigül We already have individual data calculated by software using Williamson Hall method