86- Shahnazari, Ali., Qasem Aghajani And Hamid Amirnejad. (2010). Economic study of tertiary system construction in the Alborz integrated land and water management project. The 6th International Conference on Business, Management and Economics. Yasar University, Çesme, Izmir, Turkey, 9-7 Oct 2010
87- Amirnejad, H. (2002). Economic Effect of Land Consolidation Policy on Rice Production, A case study: Haraz River Basin. The 3rd International Iran and Russia Conference. Timiriazev Agricultural Academy. Moscow, September 18-20, 2002 Page 78 - 86.
88- Amirnejad, H. and Rafiee, H. (2009). Effects of socio-economy parameters on acceptance of biological pest control methods among Rice farms. 5th International Iran and Russia Conference, 24-25 September 2009, Saint Petersburg, Russia.
89- Hamid Amirnejad, Seyed Hassan Zali and Hamed Rafiee (2011). Multi Criteria Attributive Compensated Model Contribution For Establishing Proper Strategy For Iran’s Saffron. International Conference on Traditional Medicine (CONTRAMED 2011). Penang, Malaysia from November 29 – 30, 2011
90. Hamid Amirnejad, Hamed Rafiee and Hassan Zali (2012). A survey Global Market Structure and Target Markets Export of Medical and Aromatic Plants. International Congress on Aromatic and Medicinal Plants, CIPAM 2012, 8-10 May 2012.
91 - Hamid Amirnejad, Ardevan Zarandian and Touba Rousta. Determination of vegetation of Bamu National Park in carbon sequestration and mitigating of air pollution in Shiraz, Iran. 2nd Urban Environmental Pollution conference, 17-20 June 2012, Amsterdam, the Netherlands.
92. Komeil Jahanifar, Hamid Amirnejad, Foad Eshghi (2013). Economic Evaluation of Fishery on the coasts of Miankale wildlife Refuge. The Second international conference on agriculture and natural resources, Razi University, Kermanshah, Iran, 25-26 December, 2013.
93. Hamid Amirnejad, Komeil Jahanifar (2013). Determination of Wetland Conservation Value by using Analytic Hierarchy Process. The Second international conference on agriculture and natural resources, Razi University, Kermanshah, Iran, 25-26 December, 2013.
94. Hamid Amirnejad (2014). The Comparison of Contingent Valuation and Travel Cost Method in Estimation of Economic Value of Recreational, Tourism and Aesthetic Functions. The 5th World Congress of Environmental and Resource Economists (WCERE), Istanbul, turkey.