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://poshe.farafile.ir/file/43944/استخراج-معادله-انرژی-به-فرم-انتگرالی-و-حل-تشابهی-معادله-بلازیوس