@article{202107.0238, doi = {10.20944/preprints202107.0238.v1}, url = {https://doi.org/10.20944/preprints202107.0238.v1}, year = 2021, month = {July}, publisher = {Preprints}, author = {Mohamed Abdalla Bakry and Ali Eid and A. Alkaoud}, title = {An Idea about Negative Cosmic Time in the Big Bang-Big Rip Cosmological Model}, journal = {Preprints} }