"Circular economy, motivations for its adoption, and the main challenges in its implementation “A presentation of the German experience (2017-2020)”". مجلة اقتصاديات شمال افريقيا, م 20, عدد 34, يونيو، 2025, ص 1-16, https://journals.univ-chlef.dz/index.php/renaf/article/view/217.