Rahmani Z, Moradi AJ, Yaqubi AM. Efficiency Analysis of Walnut Marketing Chanels: Case Study: Balkh and Samangan Province. SARJ [Internet]. 2024 May 30 [cited 2025 Jul. 12];2(01):45-63. Available from: https://researchsparker.edu.af/index.php/SARJ/article/view/43