QUANTIFICATION OF WATER EROSION USING THE RUSLE MODEL: Case of a zone in the Ankazobe district, Analamanga Region, MADAGASCAR - RAKOTOARIMALALA, Anjatiana; RAKOTONDRAZAFY, Raymond; RABE, Patrick Heritsalamarivo; RATRIMO, Voahangy (International Journal of Advance Research and Innovative Ideas In Education, 2025)