@article{ author = {Rahrovi, Samira, piri, H.}, title = {THE ROPER-SUFFRIDGE EXTENSION OPERATORS ON THE CLASS OF STRONG AND ALMOST SPIRALLIKE MAPPINGS OF TYPE $beta$ AND ORDER $alpha$}, journal = {Journal of New Researches in Mathematics}, year = {2020}, volume = {6}, number = {2}, pages = {5-18}, doi = {} }