“Content Analysis for Secondary Geographical Studies Books ‎Regard to Principles of Sustainable Development.‎”. ALUSTATH JOURNAL FOR HUMAN AND SOCIAL SCIENCES 61, no. 3 (September 15, 2022): 31–57. Accessed May 18, 2024. https://alustath.uobaghdad.edu.iq/index.php/UJIRCO/article/view/1601.