M.  Newman, Thomas, P., Lanorsavanh, S., Ketphanh, S., Svengsuksa, B., and Lamxay, V., ?New records of angiosperms and pteridophytes in the flora of Laos?, Edinburgh Journal of Botany, vol. 64, pp. 225?251, 2007.

M.  Newman, Ketphanh, S., Svengsuksa, B., Thomas, P., Sengdala, K., Lamxay, V., Armstrong, K., and , A checklist of the vascular plants of Lao PDR. Royal Botanic Garden Edinburgh, 2007.

M.  Newman, Thomas, P., Lanorsavanh, S., Ketphanh, S., Svengsuksa, B., and Lamxay, V., ?New records of angiosperms and pteridophytes in the flora of Laos?, Edinburgh Journal of Botany, vol. 64, pp. 225?251, 2007.

M.  Newman, Ketphanh, S., Svengsuksa, B., Thomas, P., Sengdala, K., Lamxay, V., Armstrong, K., and , A checklist of the vascular plants of Lao PDR. Royal Botanic Garden Edinburgh, 2007.