SEHGAL, J., H. ROSE, and A. KAURSIDHU. “STUDIES ON BIOLOGY OF CATOPSILIA POMONA (FABRICIUS), THE COMMON EMIGRANT AND C. PYRANTHE (LINNAEUS), THE MOTTLED EMIGRANT (LEPIDOPTERA : PIERIDAE) FROM PUNJAB”. UTTAR PRADESH JOURNAL OF ZOOLOGY, Vol. 30, no. 3, Mar. 2010, pp. 335-43, https://www.mbimph.com/index.php/UPJOZ/article/view/355.