URBAN CONTEXT ANALYSIS ACCORDING TO THE CONCEPT OF SPENCER’S BIOLOGICAL THEORY USING GIS: BALAD CITY CASE STUDY. J. eng. sustain. dev. [Internet]. 2024 Mar. 1 [cited 2024 May 10];28(02):190-212. Available from: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/2216