K. Joshi, N. patel, V. Shukla, K. Nishteswar, M. Goyale, and S. Rahul, “PHYSICOCHEMICAL AND HPTLC ANALYSIS OF PIPPALIMULA (ROOT OF Piper longum LINN.)”, IJPBR, vol. 4, no. 01, pp. 01-06, Mar. 2016.