Lihat Juga

• Grammatical errors produced by students of the english departement at petra christian university in their writing
  oleh: Wardhana, Lenny
  Terbitan: (2002)
• Grammatical errors produced by students of the English department at Petra Christian University in their writing
  oleh: Wardhana, Lenny
  Terbitan: (2002)
• An Analysis of grammatical errors in writing one assignments produced by the English Department students of Petra Christian University
  oleh: YENITA SULIMTO
  Terbitan: (2001)
• A Study on the grammatical errors made by the students of the english departement of Muhammadiyah University of Malang in writing english sentences
  oleh: Soeparto
• A Study on the grammatical errors produced by the students of speaking VI class of English Department of Petra Christian University
  oleh: IFAN TIRTA WIJAYA
  Terbitan: (2000)