List of Articles Sales Performance Open Access Article Abstract Page Full-Text 1 - Identifying effective strategic factors in the field of sales performance and the role of social media marketing with a future research approach farid gharavi Hosein Vazifehdust Karimkarim Hamdi Open Access Article Abstract Page Full-Text 2 - Evaluation of Direct Marketing Application in Non-profit Services Organizations (Case Study: Karaj’s Art Organizations) M. A. Abdolvand K. Heidarzadeh M. Najafi pirasteh Open Access Article Abstract Page Full-Text 3 - Evaluating the Performance of the Sales Force on KPI with the Data Envelopment Analysis (DEA) Esmaeel Malekakhlagh Arman Poureisa Sayyed Ali Nabizadeh