https://www.academia.edu/41702000/STATISTIQUE_APPLIQUEE_Outils_daide_à_la_décision
file:///C:/Users/Dell/Downloads/STATISTIQUE_APPLIQUEE_Outils_daide_a_la.pdf
file:///C:/Users/Dell/Downloads/Hydrologie%20statistique%20partie%2001%20(2).pdf
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwiWn7XWm7CGAxVlUqQEHfkfAoQQFnoECBkQAQ&url=https%3A%2F%2Fwww.univ-chlef.dz%2Ffsnv%2Fwp-content%2Fuploads%2FCours-Statistique-Appliqu%25C3%25A9e-_-Mr-Habibi-_-L3-sol-et-eau.pdf&usg=AOvVaw305d0r9sj8Gdswq2Fhi714&opi=89978449
