Poonpaiboonpipat, Thanatsan. “Allelopathic Effect of Barleria lupulina Lindl.on Germination and Seedling Growth of Pigweed and Barnyardgrass”. Asian Health, Science and Technology Reports 25, no. 4 (September 15, 2017): 44–50. accessed August 30, 2026. https://ph03.tci-thaijo.org/index.php/ahstr/article/view/1670.