Ahmadi, A. ., Gohari, S. ., Kondori, A. ., & Jaldi, I. Z. . (2013). A Study of Legal Nature of Preliminary Agreements and Its Necessity Fundamentals. International Journal of Asian Social Science, 3(4), 1012–1019. Retrieved from https://archive.aessweb.com/index.php/5007/article/view/2472