Waseem Hassan, Sajid Rahman and Amina Ara 2024. The Research Growth Rate (2019-2020) of Forty Countries in the Field of Earth and Planetary Science Research. Proceedings of the Pakistan Academy of Sciences: A. Physical and Computational Sciences. 61, 1 (Mar. 2024), 71–80. DOI:https://doi.org/10.53560/PPASA(61-1)818.