Ekpenyong EP, Ononuju CC, Orikara CC, and Ikwunagu EA, “Nematicidal potential of three plant materials against Root-Knot Nematode (Meloidogyne incognita) infestation on Tomato (Solanum lycopersicum)”, ijlsci, vol. 4, no. 1, pp. 22–28, Apr. 2016.