| 1. | Factors productivity analysis of broiler chicken industry in Kurdistan province | |
| 2. | Investigation of causality between GNP and greenhouse gases (Case study: dioxide carbon in Iran) | |
| Pages 19-41 | ||
| I. Saleh; Z. Sha'bani; H. Sadat Barikani; S. Yazdani | ||
| 3. | Estimation of environmental costs of greenhouse gases emission in Mashhad dairy farms | |
| Pages 43-63 | ||
| M. Ghorbani; A. Darijani; A. Koocheki; M. Motallebi | ||
| 4. | Comparison of competitive situation in production and export of Iranian apple with OECD countries (Case study: selected cities fromWestern Azerbaijan province (2003-2005)) | |
| Pages 65-97 | ||
| KH Nasrollahi; Z. Nasrollahi; H. Shajari; M.R. Forootan | ||
| 5. | Importance of farm management skills as perceived by Tafresh township's wheat farmers | |
| Pages 99-114 | ||
| Y. Yaghoobi; M. Chizari; Gh. Pezeshkirad; S. Fealy | ||
| 6. | Economic analysis of optimal utilizing in northern forest of Iran (sixteen district of Shafarood watershed) | |
| Pages 115-138 | ||