Pissawan Chiemsombat, Wichai Kositratana, Supat Attathom, Thira Sutabutra, and Nuchnard Sae-aung, “DNA Probe and Nucleic Acid Hybridization for Plant Virus Detection”, Agr. Nat. Resour., vol. 24, no. 5, pp. 12–16, Dec. 1990.