%0 Journal Article %T Application of System Thinking Approach in Identifying the Challenges of Beef Value Chain %A Alizadeh, Parisa %A Mohammadi, Hosein %A Shahnoushi Foroushani, Naser %A سید سقائیان %A Pooya, Alireza %J Agris On-line Papers in Economics and Informatics %@ 1804-1930 %D 2020