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Sakda Fahkrajang. Effects of 3-nitrocinnamic acid and 3, 4 (methylenedioxy) cinnamic acid on the growth of weeds and crops. . Bangkok:Chulalongkorn University, 2004.
Sakda Fahkrajang. (2004) Effects of 3-nitrocinnamic acid and 3, 4 (methylenedioxy) cinnamic acid on the growth of weeds and crops . Chulalongkorn University/Bangkok.