List of Articles توسعه محصولات جدید Open Access Article Abstract Page Full-Text 1 - The Necessity of Considering the Development of New Products and the Role of Innovation, Technology and R&D in it Abass Khamse Reza Radfar Ali Sarafrazz Davood Sarafrazz Open Access Article Abstract Page Full-Text 2 - Factors Affecting Customer Participation in the New Product Development Process: Case study of food industry of Mazandaran province khorshid forughinia ali akbar Jowkar Mohammad Mahmoudi Maymand mirza hassan hosseini Open Access Article Abstract Page Full-Text 3 - Identifying Factors Affecting the Capability of R&D Centers in Automotive Industry with the New Product Development Approach Hamid Hanifi adel azar alireza boushehri 10.61186/jstpi.39351.21.81.76