Permsak Supapornhemin. 1991. Effects of root-knot nematode (Meloidogyne incognita chitwood) on nodulation and yield of soybean (Glycine max (L.) merrill). Graduate School, Kasetsart University;
Permsak Supapornhemin. (1991) Effects of root-knot nematode (Meloidogyne incognita chitwood) on nodulation and yield of soybean (Glycine max (L.) merrill) . Kasetsart University/Bangkok.
Permsak Supapornhemin. Effects of root-knot nematode (Meloidogyne incognita chitwood) on nodulation and yield of soybean (Glycine max (L.) merrill). . Bangkok:Kasetsart University, 1991.
Permsak Supapornhemin. (1991) Effects of root-knot nematode (Meloidogyne incognita chitwood) on nodulation and yield of soybean (Glycine max (L.) merrill) . Kasetsart University/Bangkok.