Nacer Fethi. AN ATTEMPT TO REVEAL THE PATTERNS AND CHARACTERISTICS OF ENVIRONMENTAL CONCERN IN THE MUNICIPALITIES OF CONSTANTINE PROVINCE USING FACTOR AND CLUSTER ANALYSIS FOR THE YEAR 2021. IJITSS [Internet]. 2024Jun.30 [cited 2024Oct.28];(2(42). Available from: https://rsglobal.pl/index.php/ijitss/article/view/2877