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Kharkwal, A C and Prakash, Om and Bhattacharya, Amita and Ahuja, Paramvir Singh (2004) Mass propagation and conservation of Podophyllum emodi wall-An endangered medicinal plant of the Himalaya. Plant Genetic Resources, 2 (1). pp. 51-57.

Kharkwal, A C and Kushwaha , R and Prakash , Om and Ogra, R K and Bhattacharya, Amita (2008) An efficient method of propagation of Podophyllum hexandrum: an endangered medicinal plant of the Western Himalayas under ex situ conditions. Journal of Natural Medicines, 62 (2). pp. 211-216.