R Panduranga rao , Y.V.Seshagiri Rao, G. Y. Sagar, B. Nageswara Rao. (2023). THE CHARACTERIZED CONCEPT OF VAGUE CO-FRAMES. Journal of Advanced Zoology, 44(S5), 2021–2030. https://doi.org/10.17762/jaz.v44iS-5.1590