Oktavia, Elisa, Winarto, Winarto, AND Sulyanti, Eri. " Activity of Castor Bean Leaves Extract (Ricinus Communis Linnaeus) to Development of Nematode Meloidogyne Spp. on Tomato Plant (Lycopersicum esculentum Miller)" Jurnal Proteksi Tanaman [Online], Volume 5 Number 1 (30 June 2021)