RAO, P. R. M., R. SINGH, C. S. NAGARAJ, and K. VIJAVARAGHAVAN. “STUDIES ON FOUNDATION HYBRIDS IN SILKWORM BOMBYX MORI L”. UTTAR PRADESH JOURNAL OF ZOOLOGY, vol. 17, no. 1, Jan. 1997, pp. 75-81, https://www.mbimph.com/index.php/UPJOZ/article/view/109.