Karakteristik hujan pemicu longsor berbasis data tropical rainfall measuring mission (TRMM) (Studi kasus Kabupaten Cianjur dan Kabupaten Garut) = Characteristic of rainfall triggered landslide based on tropical rainfall measuring mission data (Study case Cianjur and Garut) (Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2014)