2 Comments

  1. Toms
    March 13, 2017 @ 22:55

    apa contohnya objek sains yg abstrak?

    Reply

    • innalatifarahmawati
      November 2, 2018 @ 11:02

      Yang dimaksud abstrak di sini sulit dibayangkan, seperti materi atom ion molekul.

      Reply

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