معنی multi-stage cluster sampling, معنی وعکفه-سفشلث رکعسفثق سشوحکهئل, معنی multi-stage cluster sampling, معنی اصطلاح multi-stage cluster sampling, معادل multi-stage cluster sampling, multi-stage cluster sampling چی میشه؟, multi-stage cluster sampling یعنی چی؟, multi-stage cluster sampling synonym, multi-stage cluster sampling definition,