GUPTA, V.P., SEKHON, M.S. and SATIJA, D.R. 1991. STUDIES ON GENETIC DIVERSITY, HETEROSIS AND COMBINING ABILITY IN INDIAN MUSTARD [BRASSICA /UNCEA L. (CZERN and COSS)]. INDIAN JOURNAL OF GENETICS AND PLANT BREEDING. 51, 04 (Nov. 1991), 448–453. DOI:https://doi.org/.