Humic substances in drug development / Rajesh Khanna, S.P. Agarwal, R.K. Khar. Khanna, Rajesh, Dr. Agarwal, S. P. (Suraj Prakash) Khar, R. K. (Roop Krishen) Humic acid. Humus. Drug development. QD341.A2 K43 2009 615.19 KHH Includes bibliographical references [p. 226-239] and index. New Delhi : Studium Press (India), c2009. c2009. 2009 Text x, 248 p. : eng