Koirala, P., N. R. Dahal, J. P. Lama, and U. kumar Bhattarai. “Assessment of Certain Pesticide Residues in Nepalese Tea”. Journal of Food Science and Technology Nepal, vol. 4, June 2009, pp. 31-33, https://www.nepjol.info/index.php/JFSTN/article/view/1993.