End-to-end encryption and privacy controls.
Message and call for free* around the world.
Group conversations made simple.
Say it with stickers, voice, GIFs and more.
Reach your customers from anywhere.
https://bookfile.pdf-doc.ir/file/27559/دانلود-جزوه-مروری-بر-محاسبات-عددی-دکتر-عبدالمجيد-خوشنود