Karna, P. (2017) “Cytological Studies on Two Species, Xanthium strumarium Linn. and Bidens pilosa Linn. Var. minor (Blume) Sherff (Asteraceae-Heliantheae) from Nepal”, International Journal of Applied Sciences and Biotechnology, 5(1), pp. 66-71. doi: 10.3126/ijasbt.v5i1.17010.