توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Arifin, H. Z. (1995). Document similarity and structure: Using bibliometric methods and index terms as approaches to improving information retrieval performance. Indiana University.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Arifin, Hasibuan Zainal. Document Similarity and Structure: Using Bibliometric Methods and Index Terms as Approaches to Improving Information Retrieval Performance. Indiana: Indiana University, 1995.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Arifin, Hasibuan Zainal. Document Similarity and Structure: Using Bibliometric Methods and Index Terms as Approaches to Improving Information Retrieval Performance. Indiana University, 1995.