00430nam a22001337a 4500003000500000038001800005082000800023100001900031245009100050264003300141650002100174700004300195856005800238NUST  aNusrat Nadeem  a200  aZakria, Ayesha  aCenter of Mass Energy of Particles Around Some Black Hole Spacetimes/cAyesha Zakria,   aIslamabad:bSNS NUST.c2025.  aPhD-Mathematics   aSupervisor: Prof. Azad Akhter Siddiqui  u http://10.250.8.41:8080/xmlui/handle/123456789/54960