LAWAN BULAMA, EJEH LAWRENCE UDEH, ADAMU IBRAHIM, FATIMA MUHAMMAD ALAMAI, et MUSTAPHA ALIBE, « ASSESSING THE EFFECTIVENESS OF SPI AND PDBM INDICES IN METEOROLOGICAL DROUGHTS DETECTION; A COMPARATIVE APPROACH »., IJAAR, vol. 9, nᵒ 11, p. 1–11, nov. 2023, Consulté le: oct. 22, 2026. Disponible sur: https://www.openjournals.ijaar.org/index.php/ijaar/article/view/254