Mao, A. A., et al. “Status and Distribution Pattern of Rhododendron Species in Temperate and Sub-Alpine Hill Ranges of Mount Esii and Surrounding in Manipur and Nagaland, India”. Indian Forester, vol. 135, no. 7, July 2009, pp. 880-9, doi:10.36808/if/2009/v135i7/420.