Ozelame O, Dessimon Machado J, de Hegedus P. The systemic approach in extension: from hard system to soft systems. Agrocienc Urug [Internet]. 2002 Dec. 1 [cited 2025 Oct. 18];6(2):53-60. Available from: https://agrocienciauruguay.uy/index.php/agrociencia/article/view/1376