Research Article
Azadirachtin Variation of Six Provenances of Azadirachta excelsa (Jack) Jacob.
Department of Forest Production, Faculty of Forestry, Universiti Putra Malaysia, 43400 UPM, Serdang, Malaysia
Loo Kean Seong
Department of Forest Production, Faculty of Forestry, Universiti Putra Malaysia, 43400 UPM, Serdang, Malaysia