Anouar Riad Solh & Mourad El Belkacemi 2021. Studies on Identification and Classification of the Best Communities That Ensure the Mastery of Their Expenditure by Using the Threshold of Their Cluster. New Visions in Science and Technology Vol. 6. (Oct. 2021), 98–109. DOI:https://doi.org/10.9734/bpi/nvst/v6/3418D.