Sasser, J. “Research on Intergrated crop protection systems with emphasis on the root-knot nematodes (Meloidogyne SPP.) affecting economic food crops in developing nations”. Agriculture and Natural Resources, vol. 12, no. 1, Jan. 1978, pp. 79-81, https://li01.tci-thaijo.org/index.php/anres/article/view/240800.