Shrestha, S., N. Shrestha, and S. Rajbhandary. “Micromorphological Studies of the Genus Ipomoea L. (Convolvulaceae) in Nepal”. Himalayan Biodiversity, vol. 5, no. 1, Dec. 2017, pp. 16-23, doi:10.3126/hebids.v5i1.36149.