Zungsontiporn, Siriporn. 1994. “Effect of Crude Extract of Euptorium Adenophorum Spreng. On Germination and Growth of Some Crops and Weeds”. Thai Agricultural Research Journal 12 (1):37-41. https://li01.tci-thaijo.org/index.php/thaiagriculturalresearch/article/view/240222.