List of Articles مشارکت مشتری Open Access Article Abstract Page Full-Text 1 - A Pattern for Promotion of the New Product Development Success Based on Customer Involvement Capability, Customer Knowledge Absorption and Resources Slack sadaf Veshkaeinezhad Mostafa Ebrahim pour Azbary Mohammad Doustar 10.7508/jstpi.2019.02.005 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 - presenting a Model of customer engagement Co-Creation :A dual perspective Co-Creation value for the customer and the company mitra mobini Samad Aali Alireza Bafandeh Zendeh houshang taghizadeh