SALEM, A. G., TAHA, T. A., ABOUEL-FADL, I. A. (2001). 'STUDIES ON VARIABILITY, HERITABILITY AND CHARACTERS ASSOCIATION IN BLACK CUMIN (NIGELLA SATIVA L.)', Egyptian Journal of Agricultural Research, 79(4), pp. 1439-1447. doi: 10.21608/ejar.2001.320908