Sarmah, M., and R. Bhola. “Bio-Activity of Xanthium Strumarium Extracts Against Tea Mosquito Bug, Helopeltis Theivora”. Journal of Plantation Crops, vol. 42, no. 1, Jan. 2014, pp. 40-47, https://updatepublishing.com/journal/index.php/JPC/article/view/5543.