LAWAN BULAMA, EJEH LAWRENCE UDEH, ADAMU IBRAHIM, FATIMA MUHAMMAD ALAMAI, et MUSTAPHA ALIBE. 2023. « ASSESSING THE EFFECTIVENESS OF SPI AND PDBM INDICES IN METEOROLOGICAL DROUGHTS DETECTION; A COMPARATIVE APPROACH ». International Journal of Advanced Academic Research 9 (11): 1-11. https://www.openjournals.ijaar.org/index.php/ijaar/article/view/254.