Rana, J.C. et al. 2004. Cultivation of <I>Hedychium spicatum</I> (Kapoor Kachari) , <I>Valeriana wallichii</I> and <I>Roscoea purpurea</I> in Hill Regions of India. Indian Forester. 130, 9 (Sep. 2004), 1008–1018. DOI:https://doi.org/10.36808/if/2004/v130i9/2113.