Rakotoarimanana, R.S. et al. 2024. Carecterisation des Secheresses de la Region d’Atsimo Andrefana de Madagascar via Standard Precitipation Index (SPI) . European Scientific Journal, ESJ. 20, 9 (Mar. 2024), 34. DOI:https://doi.org/10.19044/esj.2024.v20n9p34.