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.
http://studentedu.farafile.ir/file/30266/حل-مسائل-فصل-6-کتاب-بهای-تمام-شده-حجم-سود-(نوروش-و-مشایخی)