H. Sarhadi, J. Daneshian, S. A. Valadabadi, H. Heidary Sharafabad, and G. Afsharmanesh, “The effect of drought stress and nitrogen fertilization on the active ingredient, chlorophyll A and B, and chlorophyll index of henna”, Nexo Scientific Journal, vol. 33, no. 02, pp. 694–706, Dec. 2020.