callus, L., A. A. Guirgis, M. A. Abd EI-Kawy, H. N. Abbas, A. M. Araffa, and A. I. Maksoud,
"High Rosmarinic acid content in induced mutants and in vitro elicited sweet basal (Ocimum basilicum",
Asian Journal of Plant Sciences, vol. 6, issue 7, pp. 1058, 2007.