Source: https://www.researchgate.net/profile/Momar-Diongue-2/publication/312539950_L'arrangement_territorial_des_peripheries_metropolitaines_cas_de_Sangalkam_et_de_Sebikhotane_Dakar_Senegal/links/58f7168ea6fdcc187f3a7dab/Larrangement-territorial-des-peripheries-metropolitaines-cas-de-Sangalkam-et-de-Sebikhotane-Dakar-Senegal.pdf