Mutalib S. Mohammad, A. and E. Jumma, N. 2006. Partial Purification of Glutamate Dehydrogenase from the Callus of Stems of )Nigella sativa L.) in the Presence of 2,4- D or PDA. Rafidain Journal of Science. 17, 13 (Dec. 2006), 80–93. DOI:https://doi.org/10.33899/rjs.2006.44251.