R. Devadas, R. C. Upadhyaya, and P. Khatiwara, “Characterization and Evaluation of a Rare Orchid Renanthera imschootiana Rolfe from Manipur & Nagaland”, J. Hortic. Sci., vol. 4, no. 2, pp. 181–183, Dec. 2009, doi: 10.24154/jhs.v4i2.542.