Information Journal Paper
APA:
CopySoltani sehat, Leili, ALIZADEH, REZA, & MEHREGAN, NADER. (2019). Research and Development Investment and Productivity Growth in Firms with Different Levels of Technology. IRANIAN ECONOMIC REVIEW, 23(4), 795-818. SID. https://sid.ir/paper/314435/en
Vancouver:
CopySoltani sehat Leili, ALIZADEH REZA, MEHREGAN NADER. Research and Development Investment and Productivity Growth in Firms with Different Levels of Technology. IRANIAN ECONOMIC REVIEW[Internet]. 2019;23(4):795-818. Available from: https://sid.ir/paper/314435/en
IEEE:
CopyLeili Soltani sehat, REZA ALIZADEH, and NADER MEHREGAN, “Research and Development Investment and Productivity Growth in Firms with Different Levels of Technology,” IRANIAN ECONOMIC REVIEW, vol. 23, no. 4, pp. 795–818, 2019, [Online]. Available: https://sid.ir/paper/314435/en