Natthawadee Sombattapsut และ Ruedeekorn Wiwattanapatapee; Sanan Subhadhirasaku; Soontorn Pipithsangchan. (2009) The Repellent and Antioviposition Effects of Crude Root Extracts of Stemona curtisii Hook. F. Derris elliptica Benth. and Thiem Seed Kernel Oil (Azadirachta excelsa (Jack) Jacobs.) on Diamondback Moth (Plutella xylostella L.). <i>Thai Agricultural Research Journal</i>, <i>27</i>(2), 170-183.Natthawadee Sombattapsut และ Ruedeekorn Wiwattanapatapee; Sanan Subhadhirasaku; Soontorn Pipithsangchan. "The Repellent and Antioviposition Effects of Crude Root Extracts of Stemona curtisii Hook. F. Derris elliptica Benth. and Thiem Seed Kernel Oil (Azadirachta excelsa (Jack) Jacobs.) on Diamondback Moth (Plutella xylostella L.)". Thai Agricultural Research Journal 27 (2009):170-183.Natthawadee Sombattapsut และ Ruedeekorn Wiwattanapatapee; Sanan Subhadhirasaku; Soontorn Pipithsangchan. The Repellent and Antioviposition Effects of Crude Root Extracts of Stemona curtisii Hook. F. Derris elliptica Benth. and Thiem Seed Kernel Oil (Azadirachta excelsa (Jack) Jacobs.) on Diamondback Moth (Plutella xylostella L.). Department of Agriculture:ม.ป.ท. 2009.