List of Articles تفکیکی Open Access Article Abstract Page Full-Text 1 - Portfolio Optimization Using Hierarchical and Denotation Clustering in Tehran Stock Exchange. mojtaba mirlohi nima mohammadi Todeshki Open Access Article Abstract Page Full-Text 2 - The Discriminant Validity of the Farsi Version of Hopkins Symptom Checklist in Clinical and Normal Populations Ashrafsadat Mosavi Nima Ghorbani Open Access Article Abstract Page Full-Text 3 - An Evaluation of the Teaching Process of Elementary School Math Teachers on the Basis of Differentiated Instruction Approach Mohammad AhmadidehGhotboddini Jafar Najafi Zand