Use Sim900A module with GSM libs

  1. The library in File->example->GSM->ReceieveSMS in arduino are written for its shield as here:
    https://www.arduino.cc/en/Main/ArduinoGSMShield

  2. But can these libs also works for SIM900A module? Do anyone have prior exp with this?

Edit: I have to only send & receive msg. Don't have to use any other lib.

  1. The library in File->example->GSM->ReceieveSMS in arduino are written for its shield as here:
    https://www.arduino.cc/en/Main/ArduinoGSMShield

Yes.

  1. But can these libs also works for SIM900A module? Do anyone have prior exp with this?

No. The libraries are hardware dependent. Different hardware, different libraries.