Gaya APA
      1505112741, E, E, /. (2019).
    The Effect Of Collaborative Writing On The Ability Of The First Year Students Of SMP Kartika 1-5 Pekanbaru In Writing Descriptive Texts .
    Pekanbaru:
  Universitas Riau - FKIP – Pendidikan Bahasa Inggris.
  
Gaya MLA
      1505112741, Eka, Ernawati, /.
    "The Effect Of Collaborative Writing On The Ability Of The First Year Students Of SMP Kartika 1-5 Pekanbaru In Writing Descriptive Texts".
    
    Pekanbaru:
  Universitas Riau - FKIP – Pendidikan Bahasa Inggris,
  2019.
  CD Skripsi.