S. S. Chawla and B. R. Subba Rao, “Further studies on the Bracon hebetor-brevicornis-complex (Hymenoptera: Braconidae) by paper chromatography”., contrib.entomol., vol. 15, no. 1-2, pp. 83–86, Mar. 1965, doi: 10.21248/contrib.entomol.15.1-2.83-86.